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88681340 = 22511403097
BaseRepresentation
bin1010100100100…
…10101101111100
320011212110221002
411102102231330
5140200300330
612444425432
72124531116
oct522225574
9204773832
1088681340
1146070670
1225848278
13154ac987
14bac63b6
157bbae45
hex5492b7c

88681340 has 24 divisors (see below), whose sum is σ = 203161392. Its totient is φ = 32247680.

The previous prime is 88681337. The next prime is 88681381. The reversal of 88681340 is 4318688.

It is a junction number, because it is equal to n+sod(n) for n = 88681294 and 88681303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201329 + ... + 201768.

It is an arithmetic number, because the mean of its divisors is an integer number (8465058).

Almost surely, 288681340 is an apocalyptic number.

It is an amenable number.

88681340 is an abundant number, since it is smaller than the sum of its proper divisors (114480052).

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

88681340 is a wasteful number, since it uses less digits than its factorization.

88681340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403117 (or 403115 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 88681340 is about 9417.0770412055. The cubic root of 88681340 is about 445.9410125289.

The spelling of 88681340 in words is "eighty-eight million, six hundred eighty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 403097 806194 1612388 2015485 4030970 4434067 8061940 8868134 17736268 22170335 44340670 88681340