Search a number
-
+
977940 = 223351811
BaseRepresentation
bin11101110110000010100
31211200111000
43232300110
5222243230
632543300
711212065
oct3566024
91750430
10977940
11608817
123b1b30
13283182
141b656c
15144b60
hexeec14

977940 has 48 divisors (see below), whose sum is σ = 3044160. Its totient is φ = 260640.

The previous prime is 977927. The next prime is 977971. The reversal of 977940 is 49779.

977940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 977895 and 977904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (63420).

2977940 is an apocalyptic number.

977940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

977940 is an abundant number, since it is smaller than the sum of its proper divisors (2066220).

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

977940 is a wasteful number, since it uses less digits than its factorization.

977940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 977940 is about 988.9084891940. The cubic root of 977940 is about 99.2591922573.

The spelling of 977940 in words is "nine hundred seventy-seven thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 1811 3622 5433 7244 9055 10866 16299 18110 21732 27165 32598 36220 48897 54330 65196 81495 97794 108660 162990 195588 244485 325980 488970 977940