Search a number
-
+
74757391896 = 23311283171939
BaseRepresentation
bin100010110011111100…
…0110100011000011000
321010221222012222200110
41011213320310120120
52211100343020041
654202034204320
75254362226605
oct1054770643030
9233858188613
1074757391896
1129782665010
12125a41236a0
137084c51245
1438927a36ac
151e280e3516
hex1167e34618

74757391896 has 32 divisors (see below), whose sum is σ = 203883796800. Its totient is φ = 22653755040.

The previous prime is 74757391867. The next prime is 74757391939. The reversal of 74757391896 is 69819375747.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141585706 + ... + 141586233.

It is an arithmetic number, because the mean of its divisors is an integer number (6371368650).

Almost surely, 274757391896 is an apocalyptic number.

It is an amenable number.

74757391896 is an abundant number, since it is smaller than the sum of its proper divisors (129126404904).

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

74757391896 is a wasteful number, since it uses less digits than its factorization.

74757391896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283171959 (or 283171955 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 66.

The spelling of 74757391896 in words is "seventy-four billion, seven hundred fifty-seven million, three hundred ninety-one thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 283171939 566343878 849515817 1132687756 1699031634 2265375512 3114891329 3398063268 6229782658 6796126536 9344673987 12459565316 18689347974 24919130632 37378695948 74757391896