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87874963 = 1137215909
BaseRepresentation
bin1010011110011…
…01110110010011
320010100111210021
411033031312103
5134443444323
612415244311
72114632141
oct517156623
9203314707
1087874963
114566a840
1225519697
1315289927
14b956591
157aac05d
hex53cdd93

87874963 has 8 divisors (see below), whose sum is σ = 98454960. Its totient is φ = 77726880.

The previous prime is 87874937. The next prime is 87874967. The reversal of 87874963 is 36947878.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87874963 - 217 = 87743891 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87874963.

It is not an unprimeable number, because it can be changed into a prime (87874967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107548 + ... + 108361.

It is an arithmetic number, because the mean of its divisors is an integer number (12306870).

Almost surely, 287874963 is an apocalyptic number.

87874963 is a deficient number, since it is larger than the sum of its proper divisors (10579997).

87874963 is a wasteful number, since it uses less digits than its factorization.

87874963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215957.

The product of its digits is 2032128, while the sum is 52.

The square root of 87874963 is about 9374.1646561174. The cubic root of 87874963 is about 444.5852517440.

The spelling of 87874963 in words is "eighty-seven million, eight hundred seventy-four thousand, nine hundred sixty-three".

Divisors: 1 11 37 407 215909 2374999 7988633 87874963