Search a number
-
+
8972010820 = 225597603399
BaseRepresentation
bin10000101101100011…
…00000010101000100
3212011021102101002001
420112301200111010
5121333313321240
64042141155044
7435222555643
oct102661402504
925137371061
108972010820
113894514583
1218a485ba84
13acca30656
1461180b35a
153779ed89a
hex216c60544

8972010820 has 24 divisors (see below), whose sum is σ = 19160568000. Its totient is φ = 3527976672.

The previous prime is 8972010799. The next prime is 8972010851. The reversal of 8972010820 is 280102798.

It is a self number, because there is not a number n which added to its sum of digits gives 8972010820.

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, 3800520 + ... + 3802879.

It is an arithmetic number, because the mean of its divisors is an integer number (798357000).

Almost surely, 28972010820 is an apocalyptic number.

It is an amenable number.

8972010820 is an abundant number, since it is smaller than the sum of its proper divisors (10188557180).

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

8972010820 is a wasteful number, since it uses less digits than its factorization.

8972010820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603467 (or 7603465 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 8972010820 is about 94720.6990050221. The cubic root of 8972010820 is about 2077.9252935027.

The spelling of 8972010820 in words is "eight billion, nine hundred seventy-two million, ten thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 7603399 15206798 30413596 38016995 76033990 152067980 448600541 897201082 1794402164 2243002705 4486005410 8972010820