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22102012310 = 257407377521
BaseRepresentation
bin10100100101011000…
…011111000110010110
32010001022211120001112
4110211120133012112
5330231103343220
614053054455022
71411465001450
oct244530370626
963038746045
1022102012310
119412011a84
124349b04472
13211301b6c1
1410d95372d0
1589557e5c5
hex52561f196

22102012310 has 32 divisors (see below), whose sum is σ = 45478746432. Its totient is φ = 7575874560.

The previous prime is 22102012249. The next prime is 22102012319. The reversal of 22102012310 is 1321020122.

It is a happy number.

It is a super-2 number, since 2×221020123102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102012319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246350 + ... + 323870.

It is an arithmetic number, because the mean of its divisors is an integer number (1421210826).

Almost surely, 222102012310 is an apocalyptic number.

22102012310 is an abundant number, since it is smaller than the sum of its proper divisors (23376734122).

22102012310 is a wasteful number, since it uses less digits than its factorization.

22102012310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81608.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22102012310 its reverse (1321020122), we get a palindrome (23423032432).

The spelling of 22102012310 in words is "twenty-two billion, one hundred two million, twelve thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 4073 8146 20365 28511 40730 57022 77521 142555 155042 285110 387605 542647 775210 1085294 2713235 5426470 315743033 631486066 1578715165 2210201231 3157430330 4420402462 11051006155 22102012310