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87853696 = 277711381
BaseRepresentation
bin1010011110010…
…00101010000000
320010022102121121
411033020222000
5134442304241
612415002024
72114513140
oct517105200
9203272547
1087853696
1145655867
1225509314
1315280048
14b94c920
157aa5ad1
hex53c8a80

87853696 has 64 divisors (see below), whose sum is σ = 202988160. Its totient is φ = 37094400.

The previous prime is 87853691. The next prime is 87853729. The reversal of 87853696 is 69635878.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (87853691) 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, 62926 + ... + 64306.

It is an arithmetic number, because the mean of its divisors is an integer number (3171690).

Almost surely, 287853696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87853696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101494080).

87853696 is an abundant number, since it is smaller than the sum of its proper divisors (115134464).

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

87853696 is a wasteful number, since it uses less digits than its factorization.

87853696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1461 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 87853696 is about 9373.0302464038. The cubic root of 87853696 is about 444.5493835169.

The spelling of 87853696 in words is "eighty-seven million, eight hundred fifty-three thousand, six hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 71 112 128 142 224 284 448 497 568 896 994 1136 1381 1988 2272 2762 3976 4544 5524 7952 9088 9667 11048 15904 19334 22096 31808 38668 44192 63616 77336 88384 98051 154672 176768 196102 309344 392204 618688 686357 784408 1237376 1372714 1568816 2745428 3137632 5490856 6275264 10981712 12550528 21963424 43926848 87853696