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74680486 = 237340243
BaseRepresentation
bin1000111001110…
…00100010100110
312012112011100221
410130320202212
5123104233421
611224354554
71564526236
oct434704246
9165464327
1074680486
1139178611
1221015a5a
131261a04a
149cbdcc6
156852841
hex47388a6

74680486 has 4 divisors (see below), whose sum is σ = 112020732. Its totient is φ = 37340242.

The previous prime is 74680483. The next prime is 74680499. The reversal of 74680486 is 68408647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68408647 = 232974289.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74680483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18670120 + ... + 18670123.

It is an arithmetic number, because the mean of its divisors is an integer number (28005183).

Almost surely, 274680486 is an apocalyptic number.

74680486 is a deficient number, since it is larger than the sum of its proper divisors (37340246).

74680486 is a wasteful number, since it uses less digits than its factorization.

74680486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37340245.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 74680486 is about 8641.7871994166. The cubic root of 74680486 is about 421.1166167766.

The spelling of 74680486 in words is "seventy-four million, six hundred eighty thousand, four hundred eighty-six".

Divisors: 1 2 37340243 74680486