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74956149 = 3223362107
BaseRepresentation
bin1000111011110…
…11110101110101
312020001011111200
410131323311311
5123142044044
611234323113
71600055022
oct435736565
9166034450
1074956149
1139346734
1221129499
13126b5668
149d52549
1568a9369
hex477bd75

74956149 has 12 divisors (see below), whose sum is σ = 112977696. Its totient is φ = 47797992.

The previous prime is 74956127. The next prime is 74956153. The reversal of 74956149 is 94165947.

74956149 is a `hidden beast` number, since 7 + 49 + 561 + 49 = 666.

It is not a de Polignac number, because 74956149 - 211 = 74954101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74956549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180847 + ... + 181260.

It is an arithmetic number, because the mean of its divisors is an integer number (9414808).

Almost surely, 274956149 is an apocalyptic number.

It is an amenable number.

74956149 is a deficient number, since it is larger than the sum of its proper divisors (38021547).

74956149 is a wasteful number, since it uses less digits than its factorization.

74956149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362136 (or 362133 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 74956149 is about 8657.7219290065. The cubic root of 74956149 is about 421.6341269257.

The spelling of 74956149 in words is "seventy-four million, nine hundred fifty-six thousand, one hundred forty-nine".

Divisors: 1 3 9 23 69 207 362107 1086321 3258963 8328461 24985383 74956149