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2115302130 = 232594124977
BaseRepresentation
bin111111000010100…
…1111001011110010
312110102022111000100
41332011033023302
513313004132010
6545522133230
7103263525414
oct17605171362
95412274010
102115302130
1199603a887
124b04b1216
13279317b86
14160d109b4
15c5a8b2c0
hex7e14f2f2

2115302130 has 48 divisors (see below), whose sum is σ = 5505850584. Its totient is φ = 563458560.

The previous prime is 2115302117. The next prime is 2115302131. The reversal of 2115302130 is 312035112.

2115302130 is a `hidden beast` number, since 2 + 1 + 1 + 530 + 2 + 130 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1177656489 + 937645641 = 34317^2 + 30621^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2115302131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72202 + ... + 97178.

Almost surely, 22115302130 is an apocalyptic number.

2115302130 is an abundant number, since it is smaller than the sum of its proper divisors (3390548454).

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

2115302130 is a wasteful number, since it uses less digits than its factorization.

2115302130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25931 (or 25928 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2115302130 is about 45992.4138309787. The cubic root of 2115302130 is about 1283.6820514465.

Adding to 2115302130 its reverse (312035112), we get a palindrome (2427337242).

The spelling of 2115302130 in words is "two billion, one hundred fifteen million, three hundred two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 941 1882 2823 4705 5646 8469 9410 14115 16938 24977 28230 42345 49954 74931 84690 124885 149862 224793 249770 374655 449586 749310 1123965 2247930 23503357 47006714 70510071 117516785 141020142 211530213 235033570 352550355 423060426 705100710 1057651065 2115302130