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23010156 = 223613607
BaseRepresentation
bin101011111000…
…1101101101100
31121022001000000
41113301231230
521342311111
62141104300
7366404001
oct127615554
947261000
1023010156
1111a96964
127858090
1349c85a0
1430ad8a8
152047c56
hex15f1b6c

23010156 has 84 divisors (see below), whose sum is σ = 65125312. Its totient is φ = 7068384.

The previous prime is 23010151. The next prime is 23010161. The reversal of 23010156 is 65101032.

It is an interprime number because it is at equal distance from previous prime (23010151) and next prime (23010161).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23010151) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 37605 + ... + 38211.

Almost surely, 223010156 is an apocalyptic number.

23010156 is a gapful number since it is divisible by the number (26) 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 23010156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32562656).

23010156 is an abundant number, since it is smaller than the sum of its proper divisors (42115156).

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

23010156 is a wasteful number, since it uses less digits than its factorization.

23010156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 23010156 is about 4796.8902426468. The cubic root of 23010156 is about 284.4285502503.

Adding to 23010156 its reverse (65101032), we get a palindrome (88111188).

The spelling of 23010156 in words is "twenty-three million, ten thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 234 243 324 351 468 486 607 702 729 972 1053 1214 1404 1458 1821 2106 2428 2916 3159 3642 4212 5463 6318 7284 7891 9477 10926 12636 15782 16389 18954 21852 23673 31564 32778 37908 47346 49167 65556 71019 94692 98334 142038 147501 196668 213057 284076 295002 426114 442503 590004 639171 852228 885006 1278342 1770012 1917513 2556684 3835026 5752539 7670052 11505078 23010156