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7490157 = 323108553
BaseRepresentation
bin11100100100101001101101
3112002112120020
4130210221231
53404141112
6424312353
7120444123
oct34445155
915075506
107490157
114256514
1226126b9
13172335c
14dcd913
159ce48c
hex724a6d

7490157 has 8 divisors (see below), whose sum is σ = 10421184. Its totient is φ = 4776288.

The previous prime is 7490143. The next prime is 7490159. The reversal of 7490157 is 7510947.

7490157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7490157 - 24 = 7490141 is a prime.

It is a super-2 number, since 2×74901572 = 112204903769298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490159) 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, 54208 + ... + 54345.

It is an arithmetic number, because the mean of its divisors is an integer number (1302648).

Almost surely, 27490157 is an apocalyptic number.

It is an amenable number.

7490157 is a deficient number, since it is larger than the sum of its proper divisors (2931027).

7490157 is a wasteful number, since it uses less digits than its factorization.

7490157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108579.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 7490157 is about 2736.8151198062. The cubic root of 7490157 is about 195.6577133654.

The spelling of 7490157 in words is "seven million, four hundred ninety thousand, one hundred fifty-seven".

Divisors: 1 3 23 69 108553 325659 2496719 7490157