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122023010000 = 245429420769
BaseRepresentation
bin111000110100100100…
…0110101111011010000
3102122221222211011111202
41301221020311323100
53444400342310000
6132020120330332
711546562320513
oct1615110657320
9378858734452
10122023010000
1147827898511
121b7953139a8
13b678359bc8
145c97cb0d7a
1532928b0dd5
hex1c69235ed0

122023010000 has 100 divisors (see below), whose sum is σ = 305617874100. Its totient is φ = 47126016000.

The previous prime is 122023009967. The next prime is 122023010009. The reversal of 122023010000 is 10320221.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 86638390336 + 35384619664 = 294344^2 + 188108^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×1220230100002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122023010009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79616 + ... + 500384.

It is an arithmetic number, because the mean of its divisors is an integer number (3056178741).

Almost surely, 2122023010000 is an apocalyptic number.

122023010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122023010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152808937050).

122023010000 is an abundant number, since it is smaller than the sum of its proper divisors (183594864100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122023010000 is an equidigital number, since it uses as much as digits as its factorization.

122023010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420826 (or 420805 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 122023010000 its reverse (10320221), we get a palindrome (122033330221).

The spelling of 122023010000 in words is "one hundred twenty-two billion, twenty-three million, ten thousand".

Divisors: 1 2 4 5 8 10 16 20 25 29 40 50 58 80 100 116 125 145 200 232 250 290 400 464 500 580 625 725 1000 1160 1250 1450 2000 2320 2500 2900 3625 5000 5800 7250 10000 11600 14500 18125 29000 36250 58000 72500 145000 290000 420769 841538 1683076 2103845 3366152 4207690 6732304 8415380 10519225 12202301 16830760 21038450 24404602 33661520 42076900 48809204 52596125 61011505 84153800 97618408 105192250 122023010 168307600 195236816 210384500 244046020 262980625 305057525 420769000 488092040 525961250 610115050 841538000 976184080 1051922500 1220230100 1525287625 2103845000 2440460200 3050575250 4207690000 4880920400 6101150500 7626438125 12202301000 15252876250 24404602000 30505752500 61011505000 122023010000