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74625380 = 22519319333
BaseRepresentation
bin1000111001010…
…11000101100100
312012102100202222
410130223011210
5123101003010
611223251512
71564206464
oct434530544
9165370688
1074625380
1139140175
1220ba9b98
13125cac3b
149ca7ba4
156841355
hex472b164

74625380 has 24 divisors (see below), whose sum is σ = 157533432. Its totient is φ = 29693952.

The previous prime is 74625379. The next prime is 74625403. The reversal of 74625380 is 8352647.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14500864 + 60124516 = 3808^2 + 7754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74625380.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5807 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (6563893).

Almost surely, 274625380 is an apocalyptic number.

It is an amenable number.

74625380 is an abundant number, since it is smaller than the sum of its proper divisors (82908052).

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

74625380 is a wasteful number, since it uses less digits than its factorization.

74625380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19535 (or 19533 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 74625380 is about 8638.5982659225. The cubic root of 74625380 is about 421.0130120122.

The spelling of 74625380 in words is "seventy-four million, six hundred twenty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 19333 38666 77332 96665 193330 386660 3731269 7462538 14925076 18656345 37312690 74625380