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122302012 = 227171913523
BaseRepresentation
bin1110100101000…
…10111000111100
322112010120211011
413102202320330
5222302131022
620045205004
73013356430
oct722427074
9275116734
10122302012
1163044348
1234b60764
131c451971
14123589c0
15ab0c977
hex74a2e3c

122302012 has 48 divisors (see below), whose sum is σ = 272643840. Its totient is φ = 46732032.

The previous prime is 122302003. The next prime is 122302013. The reversal of 122302012 is 210203221.

It is a junction number, because it is equal to n+sod(n) for n = 122301983 and 122302001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122302013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2283 + ... + 15805.

It is an arithmetic number, because the mean of its divisors is an integer number (5680080).

Almost surely, 2122302012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122302012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136321920).

122302012 is an abundant number, since it is smaller than the sum of its proper divisors (150341828).

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

122302012 is a wasteful number, since it uses less digits than its factorization.

122302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570 (or 13568 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122302012 is about 11059.0240075696. The cubic root of 122302012 is about 496.3764864000.

Adding to 122302012 its reverse (210203221), we get a palindrome (332505233).

The spelling of 122302012 in words is "one hundred twenty-two million, three hundred two thousand, twelve".

Divisors: 1 2 4 7 14 17 19 28 34 38 68 76 119 133 238 266 323 476 532 646 1292 2261 4522 9044 13523 27046 54092 94661 189322 229891 256937 378644 459782 513874 919564 1027748 1609237 1798559 3218474 3597118 4367929 6436948 7194236 8735858 17471716 30575503 61151006 122302012