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2990146 = 21495073
BaseRepresentation
bin1011011010000001000010
312121220201011
423122001002
51231141041
6144031134
734262425
oct13320102
95556634
102990146
1117625a5
1210024aa
13809023
1457b9bc
153e0e81
hex2da042

2990146 has 4 divisors (see below), whose sum is σ = 4485222. Its totient is φ = 1495072.

The previous prime is 2990137. The next prime is 2990189. The reversal of 2990146 is 6410992.

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., 2134521 + 855625 = 1461^2 + 925^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747535 + ... + 747538.

22990146 is an apocalyptic number.

2990146 is a deficient number, since it is larger than the sum of its proper divisors (1495076).

2990146 is a wasteful number, since it uses less digits than its factorization.

2990146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495075.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2990146 is about 1729.2038630537. The cubic root of 2990146 is about 144.0668735174.

It can be divided in two parts, 2990 and 146, that added together give a square (3136 = 562).

The spelling of 2990146 in words is "two million, nine hundred ninety thousand, one hundred forty-six".

Divisors: 1 2 1495073 2990146