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34408990 = 2571144687
BaseRepresentation
bin1000001101000…
…0101000011110
32101202011021001
42003100220132
532302041430
63225300514
7565320520
oct203205036
971664231
1034408990
1118471a90
12b63473a
137189a65
1447d9a10
15304a3ca
hex20d0a1e

34408990 has 32 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 10724640.

The previous prime is 34408973. The next prime is 34409021. The reversal of 34408990 is 9980443.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21574 + ... + 23113.

It is an arithmetic number, because the mean of its divisors is an integer number (2413152).

Almost surely, 234408990 is an apocalyptic number.

34408990 is an abundant number, since it is smaller than the sum of its proper divisors (42811874).

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

34408990 is a wasteful number, since it uses less digits than its factorization.

34408990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44712.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 34408990 is about 5865.9176605200. The cubic root of 34408990 is about 325.2549951446.

The spelling of 34408990 in words is "thirty-four million, four hundred eight thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 44687 89374 223435 312809 446870 491557 625618 983114 1564045 2457785 3128090 3440899 4915570 6881798 17204495 34408990