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2131955304 = 233791124449
BaseRepresentation
bin111111100010011…
…0000111001101000
312111120122112212120
41333010300321220
513331240032204
6551315111240
7103555215063
oct17704607150
95446575776
102131955304
119a4484636
124b5ba2520
1327c8c8b1b
141632078da
15c727a6d9
hex7f130e68

2131955304 has 32 divisors (see below), whose sum is σ = 5397360000. Its totient is φ = 701655552.

The previous prime is 2131955299. The next prime is 2131955311. The reversal of 2131955304 is 4035591312.

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, 560329 + ... + 564120.

It is an arithmetic number, because the mean of its divisors is an integer number (168667500).

Almost surely, 22131955304 is an apocalyptic number.

2131955304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2131955304 is an abundant number, since it is smaller than the sum of its proper divisors (3265404696).

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

2131955304 is a wasteful number, since it uses less digits than its factorization.

2131955304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124537 (or 1124533 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 2131955304 is about 46173.1015202574. The cubic root of 2131955304 is about 1287.0419379597.

The spelling of 2131955304 in words is "two billion, one hundred thirty-one million, nine hundred fifty-five thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 79 158 237 316 474 632 948 1896 1124449 2248898 3373347 4497796 6746694 8995592 13493388 26986776 88831471 177662942 266494413 355325884 532988826 710651768 1065977652 2131955304