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8142402 = 236122247
BaseRepresentation
bin11111000011111001000010
3120022200021110
4133003321002
54041024102
6450304150
7126131532
oct37037102
916280243
108142402
114661564
122888056
1318c11b8
14111d4c2
15aac86c
hex7c3e42

8142402 has 16 divisors (see below), whose sum is σ = 16552512. Its totient is φ = 2669520.

The previous prime is 8142401. The next prime is 8142467. The reversal of 8142402 is 2042418.

It is not an unprimeable number, because it can be changed into a prime (8142401) 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, 10758 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (1034532).

Almost surely, 28142402 is an apocalyptic number.

8142402 is an abundant number, since it is smaller than the sum of its proper divisors (8410110).

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

8142402 is a wasteful number, since it uses less digits than its factorization.

8142402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22313.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 8142402 is about 2853.4894427700. The cubic root of 8142402 is about 201.1797110605.

The spelling of 8142402 in words is "eight million, one hundred forty-two thousand, four hundred two".

Divisors: 1 2 3 6 61 122 183 366 22247 44494 66741 133482 1357067 2714134 4071201 8142402