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86386880 = 265499541
BaseRepresentation
bin1010010011000…
…10100011000000
320000112220112002
411021202203000
5134103340010
612323323132
72066163536
oct511424300
9200486462
1086386880
1144843818
1224b204a8
1314b884c8
14b68a156
1578b61a5
hex52628c0

86386880 has 56 divisors (see below), whose sum is σ = 206502000. Its totient is φ = 34421760.

The previous prime is 86386879. The next prime is 86386889. The reversal of 86386880 is 8868368.

It is a super-2 number, since 2×863868802 = 14925386072268800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86386889) 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, 159410 + ... + 159950.

Almost surely, 286386880 is an apocalyptic number.

86386880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86386880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103251000).

86386880 is an abundant number, since it is smaller than the sum of its proper divisors (120115120).

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

86386880 is a wasteful number, since it uses less digits than its factorization.

86386880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 86386880 is about 9294.4542604717. The cubic root of 86386880 is about 442.0614016239.

The spelling of 86386880 in words is "eighty-six million, three hundred eighty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 499 541 998 1082 1996 2164 2495 2705 3992 4328 4990 5410 7984 8656 9980 10820 15968 17312 19960 21640 31936 34624 39920 43280 79840 86560 159680 173120 269959 539918 1079836 1349795 2159672 2699590 4319344 5399180 8638688 10798360 17277376 21596720 43193440 86386880