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88681872 = 2431847539
BaseRepresentation
bin1010100100100…
…10110110010000
320011212111122210
411102102312100
5140200304442
612444432120
72124532506
oct522226620
9204774583
1088681872
1146071004
1225848640
13154acca6
14bac6676
157bbb19c
hex5492d90

88681872 has 20 divisors (see below), whose sum is σ = 229094960. Its totient is φ = 29560608.

The previous prime is 88681871. The next prime is 88681889. The reversal of 88681872 is 27818688.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1847539 = 88681872 / (8 + 8 + 6 + 8 + 1 + 8 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (88681871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923722 + ... + 923817.

It is an arithmetic number, because the mean of its divisors is an integer number (11454748).

Almost surely, 288681872 is an apocalyptic number.

It is an amenable number.

88681872 is an abundant number, since it is smaller than the sum of its proper divisors (140413088).

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

88681872 is a wasteful number, since it uses less digits than its factorization.

88681872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847550 (or 1847544 counting only the distinct ones).

The product of its digits is 344064, while the sum is 48.

The square root of 88681872 is about 9417.1052877198. The cubic root of 88681872 is about 445.9419042616.

The spelling of 88681872 in words is "eighty-eight million, six hundred eighty-one thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 1847539 3695078 5542617 7390156 11085234 14780312 22170468 29560624 44340936 88681872