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989495370862 = 2494747685431
BaseRepresentation
bin11100110011000101000…
…01010010010001101110
310111121001122002222022121
432121202201102101232
5112202441303331422
62034322355503154
7131326421610055
oct16314241222156
93447048088277
10989495370862
11351708382609
1213b92bbb7aba
1372402b9525b
1435c6b28539c
151ab144288c7
hexe66285246e

989495370862 has 4 divisors (see below), whose sum is σ = 1484243056296. Its totient is φ = 494747685430.

The previous prime is 989495370823. The next prime is 989495370863. The reversal of 989495370862 is 268073594989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268073594989 = 377245232297.

It is a junction number, because it is equal to n+sod(n) for n = 989495370791 and 989495370800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989495370863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247373842714 + ... + 247373842717.

It is an arithmetic number, because the mean of its divisors is an integer number (371060764074).

Almost surely, 2989495370862 is an apocalyptic number.

989495370862 is a deficient number, since it is larger than the sum of its proper divisors (494747685434).

989495370862 is a wasteful number, since it uses less digits than its factorization.

989495370862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494747685433.

The product of its (nonzero) digits is 235146240, while the sum is 70.

The spelling of 989495370862 in words is "nine hundred eighty-nine billion, four hundred ninety-five million, three hundred seventy thousand, eight hundred sixty-two".

Divisors: 1 2 494747685431 989495370862