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2131210130 = 257231323733
BaseRepresentation
bin111111100000111…
…1010111110010010
312111112020200200112
41333001322332102
513331042211010
6551251121322
7103545662420
oct17701727622
95445220615
102131210130
119a4015795
124b58a3242
1327c6c78aa
14163092110
15c717ea05
hex7f07af92

2131210130 has 32 divisors (see below), whose sum is σ = 4574824704. Its totient is φ = 698930496.

The previous prime is 2131210121. The next prime is 2131210139. The reversal of 2131210130 is 310121312.

It is an interprime number because it is at equal distance from previous prime (2131210121) and next prime (2131210139).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2131210139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660257 + ... + 663476.

It is an arithmetic number, because the mean of its divisors is an integer number (142963272).

Almost surely, 22131210130 is an apocalyptic number.

2131210130 is an abundant number, since it is smaller than the sum of its proper divisors (2443614574).

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

2131210130 is a wasteful number, since it uses less digits than its factorization.

2131210130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323770.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131210130 is about 46165.0314632190. The cubic root of 2131210130 is about 1286.8919689072.

Adding to 2131210130 its reverse (310121312), we get a palindrome (2441331442).

The spelling of 2131210130 in words is "two billion, one hundred thirty-one million, two hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 1323733 2647466 6618665 9266131 13237330 18532262 30445859 46330655 60891718 92661310 152229295 213121013 304458590 426242026 1065605065 2131210130