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89887392 = 2532744587
BaseRepresentation
bin1010101101110…
…01001010100000
320021010202022200
411112321022200
5141002344032
612530333200
72141013240
oct526711240
9207122280
1089887392
1146814801
122612a200
131581290a
14bd1bb20
157d5847c
hex55b92a0

89887392 has 72 divisors (see below), whose sum is σ = 292140576. Its totient is φ = 25681536.

The previous prime is 89887387. The next prime is 89887403. The reversal of 89887392 is 29378898.

Added to its reverse (29378898) it gives a triangular number (119266290 = T15444).

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20278 + ... + 24309.

It is an arithmetic number, because the mean of its divisors is an integer number (4057508).

Almost surely, 289887392 is an apocalyptic number.

It is an amenable number.

89887392 is an abundant number, since it is smaller than the sum of its proper divisors (202253184).

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

89887392 is a wasteful number, since it uses less digits than its factorization.

89887392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44610 (or 44599 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 89887392 is about 9480.8961601739. The cubic root of 89887392 is about 447.9534921959.

Adding to 89887392 its reverse (29378898), we get a triangular number (119266290 = T15444).

The spelling of 89887392 in words is "eighty-nine million, eight hundred eighty-seven thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 44587 89174 133761 178348 267522 312109 356696 401283 535044 624218 713392 802566 936327 1070088 1248436 1426784 1605132 1872654 2140176 2496872 2808981 3210264 3745308 4280352 4993744 5617962 6420528 7490616 9987488 11235924 12841056 14981232 22471848 29962464 44943696 89887392