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88343840 = 2551342473
BaseRepresentation
bin1010100010000…
…00010100100000
320011020022222002
411101000110200
5140104000330
612433303132
72121624134
oct521002440
9204208862
1088343840
1145960042
1225704aa8
13153c2180
14ba393c4
157b50e45
hex5440520

88343840 has 48 divisors (see below), whose sum is σ = 224772408. Its totient is φ = 32618496.

The previous prime is 88343833. The next prime is 88343869. The reversal of 88343840 is 4834388.

It can be written as a sum of positive squares in 4 ways, for example, as 39287824 + 49056016 = 6268^2 + 7004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 88343794 and 88343803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19157 + ... + 23316.

Almost surely, 288343840 is an apocalyptic number.

88343840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88343840 is an abundant number, since it is smaller than the sum of its proper divisors (136428568).

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

88343840 is a wasteful number, since it uses less digits than its factorization.

88343840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42501 (or 42493 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 88343840 is about 9399.1403862268. The cubic root of 88343840 is about 445.3745783529.

The spelling of 88343840 in words is "eighty-eight million, three hundred forty-three thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 42473 84946 169892 212365 339784 424730 552149 679568 849460 1104298 1359136 1698920 2208596 2760745 3397840 4417192 5521490 6795680 8834384 11042980 17668768 22085960 44171920 88343840