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3121300130 = 2513173534001
BaseRepresentation
bin1011101000001011…
…0100001010100010
322001112021110211112
42322002310022202
522343023101010
61233420143322
7140230420244
oct27202641242
98045243745
103121300130
11136198aa93
12731397b42
133a9875170
14218780094
15134054a05
hexba0b42a2

3121300130 has 64 divisors (see below), whose sum is σ = 6426187488. Its totient is φ = 1081344000.

The previous prime is 3121300099. The next prime is 3121300157. The reversal of 3121300130 is 310031213.

It can be written as a sum of positive squares in 16 ways, for example, as 13126129 + 3108174001 = 3623^2 + 55751^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778130 + ... + 782130.

Almost surely, 23121300130 is an apocalyptic number.

3121300130 is an abundant number, since it is smaller than the sum of its proper divisors (3304887358).

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

3121300130 is a wasteful number, since it uses less digits than its factorization.

3121300130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 3121300130 is about 55868.5969933021. The cubic root of 3121300130 is about 1461.4316553536.

Adding to 3121300130 its reverse (310031213), we get a palindrome (3431331343).

The spelling of 3121300130 in words is "three billion, one hundred twenty-one million, three hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 353 442 706 1105 1765 2210 3530 4001 4589 6001 8002 9178 12002 20005 22945 30005 40010 45890 52013 60010 68017 78013 104026 136034 156026 260065 340085 390065 520130 680170 780130 884221 1412353 1768442 2824706 4421105 7061765 8842210 14123530 18360589 24010001 36721178 48020002 91802945 120050005 183605890 240100010 312130013 624260026 1560650065 3121300130