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83901407 = 31101127211
BaseRepresentation
bin1010000000000…
…11101111011111
312211212122002112
411000003233133
5132434321112
612154144235
72036102342
oct500035737
9184778075
1083901407
11433a6407
122412207b
13144c8105
14b200459
157574a22
hex5003bdf

83901407 has 16 divisors (see below), whose sum is σ = 88571904. Its totient is φ = 79380000.

The previous prime is 83901383. The next prime is 83901449. The reversal of 83901407 is 70410938.

It is a cyclic number.

It is not a de Polignac number, because 83901407 - 26 = 83901343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83901497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397532 + ... + 397742.

It is an arithmetic number, because the mean of its divisors is an integer number (5535744).

Almost surely, 283901407 is an apocalyptic number.

83901407 is a deficient number, since it is larger than the sum of its proper divisors (4670497).

83901407 is a wasteful number, since it uses less digits than its factorization.

83901407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 83901407 is about 9159.7711215947. The cubic root of 83901407 is about 437.7805016970.

The spelling of 83901407 in words is "eighty-three million, nine hundred one thousand, four hundred seven".

Divisors: 1 31 101 127 211 3131 3937 6541 12827 21311 26797 397637 660641 830707 2706497 83901407