Search a number
-
+
31030110223100 = 2252520913595687
BaseRepresentation
bin1110000111000110000101…
…01100100111101011111100
311001212110010201211000000022
413003203002230213223330
513031344131204114400
6145555011424151312
76351565025665232
oct703430254475374
9131773121730008
1031030110223100
1199838832a424a
123591a15168538
131441185882941
14793c18730952
1538c26eb8cb85
hex1c38c2b27afc

31030110223100 has 36 divisors (see below), whose sum is σ = 67335581486544. Its totient is φ = 12411999425280.

The previous prime is 31030110223097. The next prime is 31030110223111. The reversal of 31030110223100 is 132201103013.

It is a super-2 number, since 2×310301102231002 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51793457 + ... + 52389143.

Almost surely, 231030110223100 is an apocalyptic number.

It is an amenable number.

31030110223100 is an abundant number, since it is smaller than the sum of its proper divisors (36305471263444).

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

31030110223100 is a wasteful number, since it uses less digits than its factorization.

31030110223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116614 (or 1116607 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31030110223100 its reverse (132201103013), we get a palindrome (31162311326113).

The spelling of 31030110223100 in words is "thirty-one trillion, thirty billion, one hundred ten million, two hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 520913 595687 1041826 1191374 2083652 2382748 2604565 2978435 5209130 5956870 10418260 11913740 13022825 14892175 26045650 29784350 52091300 59568700 310301102231 620602204462 1241204408924 1551505511155 3103011022310 6206022044620 7757527555775 15515055111550 31030110223100