Search a number
-
+
74660895 = 3251659131
BaseRepresentation
bin1000111001100…
…11110000011111
312012111011111100
410130303300133
5123103122040
611224124143
71564415151
oct434636037
9165434440
1074660895
1139164921
1221006653
131261115a
149cb6ad1
15684bb30
hex4733c1f

74660895 has 12 divisors (see below), whose sum is σ = 129412296. Its totient is φ = 39819120.

The previous prime is 74660881. The next prime is 74660903. The reversal of 74660895 is 59806647.

It is not a de Polignac number, because 74660895 - 213 = 74652703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1659131 = 74660895 / (7 + 4 + 6 + 6 + 0 + 8 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 74660895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829521 + ... + 829610.

It is an arithmetic number, because the mean of its divisors is an integer number (10784358).

Almost surely, 274660895 is an apocalyptic number.

74660895 is a deficient number, since it is larger than the sum of its proper divisors (54751401).

74660895 is a wasteful number, since it uses less digits than its factorization.

74660895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659142 (or 1659139 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 74660895 is about 8640.6536211099. The cubic root of 74660895 is about 421.0797895874.

It can be divided in two parts, 74 and 660895, that added together give a square (660969 = 8132).

The spelling of 74660895 in words is "seventy-four million, six hundred sixty thousand, eight hundred ninety-five".

Divisors: 1 3 5 9 15 45 1659131 4977393 8295655 14932179 24886965 74660895