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2990157 = 38111229
BaseRepresentation
bin1011011010000001001101
312121220201120
423122001031
51231141112
6144031153
734262442
oct13320115
95556646
102990157
111762605
1210024b9
13809031
1457b9c9
153e0e8c
hex2da04d

2990157 has 8 divisors (see below), whose sum is σ = 3995040. Its totient is φ = 1989360.

The previous prime is 2990137. The next prime is 2990189. The reversal of 2990157 is 7510992.

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

It is not a de Polignac number, because 2990157 - 215 = 2957389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819 + ... + 3047.

It is an arithmetic number, because the mean of its divisors is an integer number (499380).

22990157 is an apocalyptic number.

It is an amenable number.

2990157 is a deficient number, since it is larger than the sum of its proper divisors (1004883).

2990157 is a wasteful number, since it uses less digits than its factorization.

2990157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 2990157 is about 1729.2070437053. The cubic root of 2990157 is about 144.0670501792.

The spelling of 2990157 in words is "two million, nine hundred ninety thousand, one hundred fifty-seven".

Divisors: 1 3 811 1229 2433 3687 996719 2990157