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23012302152 = 2337151907139
BaseRepresentation
bin10101011011101000…
…111101110101001000
32012101202201001222010
4111123220331311020
5334112122132102
614323253255520
71443160224630
oct253350756510
965352631863
1023012302152
119839932234
1245629345a0
1322297a8848
1411843b16c0
158ea43ed6c
hex55ba3dd48

23012302152 has 64 divisors (see below), whose sum is σ = 66184934400. Its totient is φ = 6531393600.

The previous prime is 23012302141. The next prime is 23012302153. The reversal of 23012302152 is 25120321032.

It is a super-2 number, since 2×230123021522 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23012302153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428202 + ... + 478937.

It is an arithmetic number, because the mean of its divisors is an integer number (1034139600).

Almost surely, 223012302152 is an apocalyptic number.

It is an amenable number.

23012302152 is an abundant number, since it is smaller than the sum of its proper divisors (43172632248).

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

23012302152 is a wasteful number, since it uses less digits than its factorization.

23012302152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907306 (or 907302 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 23012302152 its reverse (25120321032), we get a palindrome (48132623184).

The spelling of 23012302152 in words is "twenty-three billion, twelve million, three hundred two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 151 168 302 453 604 906 1057 1208 1812 2114 3171 3624 4228 6342 8456 12684 25368 907139 1814278 2721417 3628556 5442834 6349973 7257112 10885668 12699946 19049919 21771336 25399892 38099838 50799784 76199676 136977989 152399352 273955978 410933967 547911956 821867934 958845923 1095823912 1643735868 1917691846 2876537769 3287471736 3835383692 5753075538 7670767384 11506151076 23012302152