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85312416 = 2537791607
BaseRepresentation
bin1010001010111…
…00001110100000
312221112022122010
411011130032200
5133314444131
612244312520
72054100150
oct505341640
9187468563
1085312416
114417a532
12246a2740
13148a0427
14b48a760
157752b46
hex515c3a0

85312416 has 96 divisors (see below), whose sum is σ = 259338240. Its totient is φ = 24051456.

The previous prime is 85312411. The next prime is 85312421. The reversal of 85312416 is 61421358.

It is an interprime number because it is at equal distance from previous prime (85312411) and next prime (85312421).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (85312411) 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 15 ways as a sum of consecutive naturals, for example, 52285 + ... + 53891.

It is an arithmetic number, because the mean of its divisors is an integer number (2701440).

Almost surely, 285312416 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 85312416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129669120).

85312416 is an abundant number, since it is smaller than the sum of its proper divisors (174025824).

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

85312416 is a wasteful number, since it uses less digits than its factorization.

85312416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706 (or 1698 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 85312416 is about 9236.4720537660. The cubic root of 85312416 is about 440.2209909166.

The spelling of 85312416 in words is "eighty-five million, three hundred twelve thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 79 84 96 112 158 168 224 237 316 336 474 553 632 672 948 1106 1264 1607 1659 1896 2212 2528 3214 3318 3792 4424 4821 6428 6636 7584 8848 9642 11249 12856 13272 17696 19284 22498 25712 26544 33747 38568 44996 51424 53088 67494 77136 89992 126953 134988 154272 179984 253906 269976 359968 380859 507812 539952 761718 888671 1015624 1079904 1523436 1777342 2031248 2666013 3046872 3554684 4062496 5332026 6093744 7109368 10664052 12187488 14218736 21328104 28437472 42656208 85312416