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20346130 = 257290659
BaseRepresentation
bin100110110011…
…1010100010010
31102021200122101
41031213110102
520202034010
62004031014
7334640110
oct115472422
942250571
1020346130
1110537392
12699246a
1342a4b3c
1429b8ab0
151bbd73a
hex1367512

20346130 has 16 divisors (see below), whose sum is σ = 41855040. Its totient is φ = 6975792.

The previous prime is 20346121. The next prime is 20346187. The reversal of 20346130 is 3164302.

It is a junction number, because it is equal to n+sod(n) for n = 20346098 and 20346107.

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, 145260 + ... + 145399.

It is an arithmetic number, because the mean of its divisors is an integer number (2615940).

Almost surely, 220346130 is an apocalyptic number.

20346130 is an abundant number, since it is smaller than the sum of its proper divisors (21508910).

20346130 is a wasteful number, since it uses less digits than its factorization.

20346130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290673.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20346130 is about 4510.6684648730. The cubic root of 20346130 is about 272.9987163773.

The spelling of 20346130 in words is "twenty million, three hundred forty-six thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 290659 581318 1453295 2034613 2906590 4069226 10173065 20346130