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74840916 = 2236236743
BaseRepresentation
bin1000111010111…
…11101101010100
312012211022102210
410131133231110
5123124402131
611232033420
71566065043
oct435375524
9165738383
1074840916
11392780a7
1221092870
1312675087
149d2255a
156885146
hex475fb54

74840916 has 12 divisors (see below), whose sum is σ = 174628832. Its totient is φ = 24946968.

The previous prime is 74840903. The next prime is 74840923. The reversal of 74840916 is 61904847.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118360 + ... + 3118383.

Almost surely, 274840916 is an apocalyptic number.

It is an amenable number.

74840916 is an abundant number, since it is smaller than the sum of its proper divisors (99787916).

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

74840916 is a wasteful number, since it uses less digits than its factorization.

74840916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236750 (or 6236748 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 74840916 is about 8651.0644431769. The cubic root of 74840916 is about 421.4179512679.

The spelling of 74840916 in words is "seventy-four million, eight hundred forty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 6236743 12473486 18710229 24946972 37420458 74840916