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87434496 = 2832137277
BaseRepresentation
bin1010011011000…
…10010100000000
320002112010120200
411031202110000
5134340400441
612402005200
72111116032
oct515422400
9202463520
1087434496
1145399916
1225346800
13151642b6
14b87dc52
157a217b6
hex5362500

87434496 has 108 divisors (see below), whose sum is σ = 254852052. Its totient is φ = 28827648.

The previous prime is 87434491. The next prime is 87434513. The reversal of 87434496 is 69443478.

It can be written as a sum of positive squares in 2 ways, for example, as 32080896 + 55353600 = 5664^2 + 7440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87434491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315510 + ... + 315786.

Almost surely, 287434496 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 87434496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127426026).

87434496 is an abundant number, since it is smaller than the sum of its proper divisors (167417556).

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

87434496 is a wasteful number, since it uses less digits than its factorization.

87434496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 419 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 87434496 is about 9350.6414753214. The cubic root of 87434496 is about 443.8411898555.

The spelling of 87434496 in words is "eighty-seven million, four hundred thirty-four thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 137 144 192 256 274 277 288 384 411 548 554 576 768 822 831 1096 1108 1152 1233 1644 1662 2192 2216 2304 2466 2493 3288 3324 4384 4432 4932 4986 6576 6648 8768 8864 9864 9972 13152 13296 17536 17728 19728 19944 26304 26592 35072 35456 37949 39456 39888 52608 53184 70912 75898 78912 79776 105216 106368 113847 151796 157824 159552 212736 227694 303592 315648 319104 341541 455388 607184 638208 683082 910776 1214368 1366164 1821552 2428736 2732328 3643104 4857472 5464656 7286208 9714944 10929312 14572416 21858624 29144832 43717248 87434496