Search a number
-
+
2124968840 = 235431235447
BaseRepresentation
bin111111010101000…
…0111001110001000
312111002111121020122
41332222013032020
513322443000330
6550505242412
7103441636301
oct17652071610
95432447218
102124968840
119a05425a5
124b3793408
1327b320b17
141623097a8
15c684a5e5
hex7ea87388

2124968840 has 32 divisors (see below), whose sum is σ = 4892374080. Its totient is φ = 830219712.

The previous prime is 2124968831. The next prime is 2124968887. The reversal of 2124968840 is 488694212.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2124968791 and 2124968800.

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, 616004 + ... + 619443.

It is an arithmetic number, because the mean of its divisors is an integer number (152886690).

Almost surely, 22124968840 is an apocalyptic number.

2124968840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124968840 is an abundant number, since it is smaller than the sum of its proper divisors (2767405240).

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

2124968840 is a wasteful number, since it uses less digits than its factorization.

2124968840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235501 (or 1235497 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 2124968840 is about 46097.3843075722. The cubic root of 2124968840 is about 1285.6345112879.

The spelling of 2124968840 in words is "two billion, one hundred twenty-four million, nine hundred sixty-eight thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 1235447 2470894 4941788 6177235 9883576 12354470 24708940 49417880 53124221 106248442 212496884 265621105 424993768 531242210 1062484420 2124968840