Search a number
-
+
31037288630 = 2543241299501
BaseRepresentation
bin11100111001111101…
…110111000010110110
32222010001010121212112
4130321331313002312
51002031021214010
622131444451022
72146063412645
oct347175670266
988101117775
1031037288630
1112187816367
1260223a9a72
132c0825995a
14170610135c
15c19c23a05
hex739f770b6

31037288630 has 32 divisors (see below), whose sum is σ = 57403751328. Its totient is φ = 12075840000.

The previous prime is 31037288617. The next prime is 31037288641. The reversal of 31037288630 is 3688273013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46121 + ... + 253380.

It is an arithmetic number, because the mean of its divisors is an integer number (1793867229).

Almost surely, 231037288630 is an apocalyptic number.

31037288630 is a deficient number, since it is larger than the sum of its proper divisors (26366462698).

31037288630 is a wasteful number, since it uses less digits than its factorization.

31037288630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299792.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 31037288630 in words is "thirty-one billion, thirty-seven million, two hundred eighty-eight thousand, six hundred thirty".

Divisors: 1 2 5 10 43 86 215 241 430 482 1205 2410 10363 20726 51815 103630 299501 599002 1497505 2995010 12878543 25757086 64392715 72179741 128785430 144359482 360898705 721797410 3103728863 6207457726 15518644315 31037288630