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88761945 = 3523257281
BaseRepresentation
bin1010100101001…
…10011001011001
320012000120111110
411102212121121
5140210340240
612450250533
72125315116
oct522463131
9205016443
1088761945
1146116188
1225886a49
131550a57c
14bb0790d
157bd4c80
hex54a6659

88761945 has 16 divisors (see below), whose sum is σ = 148194432. Its totient is φ = 45281280.

The previous prime is 88761929. The next prime is 88761949. The reversal of 88761945 is 54916788.

It is not a de Polignac number, because 88761945 - 24 = 88761929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88761894 and 88761903.

It is not an unprimeable number, because it can be changed into a prime (88761949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128296 + ... + 128985.

It is an arithmetic number, because the mean of its divisors is an integer number (9262152).

Almost surely, 288761945 is an apocalyptic number.

It is an amenable number.

88761945 is a deficient number, since it is larger than the sum of its proper divisors (59432487).

88761945 is a wasteful number, since it uses less digits than its factorization.

88761945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257312.

The product of its digits is 483840, while the sum is 48.

The square root of 88761945 is about 9421.3557941519. The cubic root of 88761945 is about 446.0760811176.

The spelling of 88761945 in words is "eighty-eight million, seven hundred sixty-one thousand, nine hundred forty-five".

Divisors: 1 3 5 15 23 69 115 345 257281 771843 1286405 3859215 5917463 17752389 29587315 88761945