Search a number
-
+
897397430876 = 221978771298551
BaseRepresentation
bin11010000111100010000…
…11100001101001011100
310011210100011120212120022
431003301003201221130
5104200332220242001
61524131513211312
7121556226206312
oct15036103415134
93153304525508
10897397430876
11316647500121
12125b08700b38
136681652698b
14316118b60b2
1518523ce011b
hexd0f10e1a5c

897397430876 has 24 divisors (see below), whose sum is σ = 1580218317216. Its totient is φ = 445911681600.

The previous prime is 897397430857. The next prime is 897397430987. The reversal of 897397430876 is 678034793798.

It is a congruent number.

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, 41801 + ... + 1340351.

It is an arithmetic number, because the mean of its divisors is an integer number (65842429884).

Almost surely, 2897397430876 is an apocalyptic number.

It is an amenable number.

897397430876 is a deficient number, since it is larger than the sum of its proper divisors (682820886340).

897397430876 is a wasteful number, since it uses less digits than its factorization.

897397430876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299629 (or 1299627 counting only the distinct ones).

The product of its (nonzero) digits is 384072192, while the sum is 71.

The spelling of 897397430876 in words is "eight hundred ninety-seven billion, three hundred ninety-seven million, four hundred thirty thousand, eight hundred seventy-six".

Divisors: 1 2 4 197 394 788 877 1754 3508 172769 345538 691076 1298551 2597102 5194204 255814547 511629094 1023258188 1138829227 2277658454 4555316908 224349357719 448698715438 897397430876