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2130974 = 26117467
BaseRepresentation
bin1000001000010000011110
311000021010222
420020100132
51021142344
6113401342
724053516
oct10102036
94007128
102130974
11122603a
12869252
13597c41
143d6846
152c15ee
hex20841e

2130974 has 8 divisors (see below), whose sum is σ = 3249048. Its totient is φ = 1047960.

The previous prime is 2130959. The next prime is 2130979. The reversal of 2130974 is 4790312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8612 + ... + 8855.

It is an arithmetic number, because the mean of its divisors is an integer number (406131).

22130974 is an apocalyptic number.

2130974 is a deficient number, since it is larger than the sum of its proper divisors (1118074).

2130974 is a wasteful number, since it uses less digits than its factorization.

2130974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17530.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2130974 is about 1459.7856006962. The cubic root of 2130974 is about 128.6844439569.

The spelling of 2130974 in words is "two million, one hundred thirty thousand, nine hundred seventy-four".

Divisors: 1 2 61 122 17467 34934 1065487 2130974