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34390902 = 2371362987
BaseRepresentation
bin1000001100110…
…0001101110110
32101201020110010
42003030031312
532301002102
63225041050
7565214010
oct203141566
971636403
1034390902
111845a437
12b626186
137181760
1447d31b0
153044d6c
hex20cc376

34390902 has 32 divisors (see below), whose sum is σ = 84655872. Its totient is φ = 9069984.

The previous prime is 34390901. The next prime is 34390903. The reversal of 34390902 is 20909343.

It is an interprime number because it is at equal distance from previous prime (34390901) and next prime (34390903).

It is a self number, because there is not a number n which added to its sum of digits gives 34390902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34390901) 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, 30948 + ... + 32039.

It is an arithmetic number, because the mean of its divisors is an integer number (2645496).

Almost surely, 234390902 is an apocalyptic number.

34390902 is an abundant number, since it is smaller than the sum of its proper divisors (50264970).

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

34390902 is a wasteful number, since it uses less digits than its factorization.

34390902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63012.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 34390902 is about 5864.3756700948. The cubic root of 34390902 is about 325.1979921779.

The spelling of 34390902 in words is "thirty-four million, three hundred ninety thousand, nine hundred two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 62987 125974 188961 377922 440909 818831 881818 1322727 1637662 2456493 2645454 4912986 5731817 11463634 17195451 34390902