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74870680 = 23512291523
BaseRepresentation
bin1000111011001…
…10111110011000
312012212211021011
410131212332120
5123131330210
611232423304
71566250603
oct435467630
9165784234
1074870680
11392984a5
12210a7b34
13126857a1
149d2d33a
15688dd8a
hex4766f98

74870680 has 32 divisors (see below), whose sum is σ = 168706800. Its totient is φ = 29904256.

The previous prime is 74870657. The next prime is 74870687. The reversal of 74870680 is 8607847.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74870687) 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, 48399 + ... + 49921.

Almost surely, 274870680 is an apocalyptic number.

It is an amenable number.

74870680 is an abundant number, since it is smaller than the sum of its proper divisors (93836120).

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

74870680 is a wasteful number, since it uses less digits than its factorization.

74870680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 74870680 is about 8652.7845229152. The cubic root of 74870680 is about 421.4738094008.

The spelling of 74870680 in words is "seventy-four million, eight hundred seventy thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1229 1523 2458 3046 4916 6092 6145 7615 9832 12184 12290 15230 24580 30460 49160 60920 1871767 3743534 7487068 9358835 14974136 18717670 37435340 74870680