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2992642 = 21496321
BaseRepresentation
bin1011011010101000000010
312122001010121
423122220002
51231231032
6144050454
734302622
oct13325002
95561117
102992642
111764464
121003a2a
1380a1c3
1457c882
153e1a97
hex2daa02

2992642 has 4 divisors (see below), whose sum is σ = 4488966. Its totient is φ = 1496320.

The previous prime is 2992621. The next prime is 2992651. The reversal of 2992642 is 2462992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1713481 + 1279161 = 1309^2 + 1131^2 .

It is a super-2 number, since 2×29926422 = 17911812280328, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2992598 and 2992607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748159 + ... + 748162.

22992642 is an apocalyptic number.

2992642 is a deficient number, since it is larger than the sum of its proper divisors (1496324).

2992642 is a wasteful number, since it uses less digits than its factorization.

2992642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496323.

The product of its digits is 15552, while the sum is 34.

The square root of 2992642 is about 1729.9254319190. The cubic root of 2992642 is about 144.1069485848.

The spelling of 2992642 in words is "two million, nine hundred ninety-two thousand, six hundred forty-two".

Divisors: 1 2 1496321 2992642