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74769949973 = 293778368239
BaseRepresentation
bin100010110100010100…
…0101110010100010101
321010222211212000010102
41011220220232110111
52211112101344343
654203203303445
75254604042225
oct1055050562425
9233884760112
1074769949973
1129789762094
12125a837ab85
13708772a264
143894312085
151e292743b8
hex1168a2e515

74769949973 has 8 divisors (see below), whose sum is σ = 77351404800. Its totient is φ = 72188707248.

The previous prime is 74769949963. The next prime is 74769949979. The reversal of 74769949973 is 37994996747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74769949973 - 218 = 74769687829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74769949973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74769949979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061588 + ... + 1129826.

It is an arithmetic number, because the mean of its divisors is an integer number (9668925600).

Almost surely, 274769949973 is an apocalyptic number.

It is an amenable number.

74769949973 is a deficient number, since it is larger than the sum of its proper divisors (2581454827).

74769949973 is a wasteful number, since it uses less digits than its factorization.

74769949973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106051.

The product of its digits is 648121824, while the sum is 74.

The spelling of 74769949973 in words is "seventy-four billion, seven hundred sixty-nine million, nine hundred forty-nine thousand, nine hundred seventy-three".

Divisors: 1 29 37783 68239 1095707 1978931 2578274137 74769949973