Search a number
-
+
10108615940 = 2251494397727
BaseRepresentation
bin10010110101000010…
…10011110100000100
3222002111010220011222
421122201103310010
5131200301202230
64351022415512
7505333550333
oct113241236404
928074126158
1010108615940
114318060855
121b61431598
13c51359867
146bc757d1a
153e26b56e5
hex25a853d04

10108615940 has 48 divisors (see below), whose sum is σ = 21422016000. Its totient is φ = 4006641792.

The previous prime is 10108615919. The next prime is 10108615949. The reversal of 10108615940 is 4951680101.

It is a self number, because there is not a number n which added to its sum of digits gives 10108615940.

It is not an unprimeable number, because it can be changed into a prime (10108615949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304357 + ... + 1312083.

It is an arithmetic number, because the mean of its divisors is an integer number (446292000).

Almost surely, 210108615940 is an apocalyptic number.

10108615940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10108615940 is an abundant number, since it is smaller than the sum of its proper divisors (11313400060).

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

10108615940 is a wasteful number, since it uses less digits than its factorization.

10108615940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324 (or 8322 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 10108615940 in words is "ten billion, one hundred eight million, six hundred fifteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 149 298 439 596 745 878 1490 1756 2195 2980 4390 7727 8780 15454 30908 38635 65411 77270 130822 154540 261644 327055 654110 1151323 1308220 2302646 3392153 4605292 5756615 6784306 11513230 13568612 16960765 23026460 33921530 67843060 505430797 1010861594 2021723188 2527153985 5054307970 10108615940