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23158085800 = 2352115790429
BaseRepresentation
bin10101100100010101…
…000101100010101000
32012202221000122112111
4111210111011202220
5334411432221200
614345542052104
71446610324063
oct254425054250
965687018474
1023158085800
119904154693
1245a371a034
132250a5c565
1411998bd8da
1590813a0ba
hex5645458a8

23158085800 has 24 divisors (see below), whose sum is σ = 53842549950. Its totient is φ = 9263234240.

The previous prime is 23158085777. The next prime is 23158085803. The reversal of 23158085800 is 858085132.

It can be written as a sum of positive squares in 3 ways, for example, as 12002078916 + 11156006884 = 109554^2 + 105622^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (23158085803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57895015 + ... + 57895414.

Almost surely, 223158085800 is an apocalyptic number.

23158085800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23158085800 is an abundant number, since it is smaller than the sum of its proper divisors (30684464150).

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

23158085800 is a wasteful number, since it uses less digits than its factorization.

23158085800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115790445 (or 115790436 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 23158085800 in words is "twenty-three billion, one hundred fifty-eight million, eighty-five thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 115790429 231580858 463161716 578952145 926323432 1157904290 2315808580 2894760725 4631617160 5789521450 11579042900 23158085800