Search a number
-
+
74706860 = 22519196597
BaseRepresentation
bin1000111001111…
…10111110101100
312012120111112202
410130332332230
5123111104420
611225121032
71564666154
oct434767654
9165514482
1074706860
1139196408
1221029178
1312629057
149cc9764
15685a575
hex473efac

74706860 has 24 divisors (see below), whose sum is σ = 165142320. Its totient is φ = 28309824.

The previous prime is 74706847. The next prime is 74706901. The reversal of 74706860 is 6860747.

It is a super-2 number, since 2×747068602 = 11162229862119200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97919 + ... + 98678.

It is an arithmetic number, because the mean of its divisors is an integer number (6880930).

Almost surely, 274706860 is an apocalyptic number.

It is an amenable number.

74706860 is an abundant number, since it is smaller than the sum of its proper divisors (90435460).

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

74706860 is a wasteful number, since it uses less digits than its factorization.

74706860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196625 (or 196623 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 74706860 is about 8643.3130222155. The cubic root of 74706860 is about 421.1661844885.

The spelling of 74706860 in words is "seventy-four million, seven hundred six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 196597 393194 786388 982985 1965970 3735343 3931940 7470686 14941372 18676715 37353430 74706860