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2957390 = 25433683
BaseRepresentation
bin1011010010000001001110
312120020202222
423102001032
51224114030
6143215342
734065062
oct13220116
95506688
102957390
11173aa27
12ba7552
137c7147
1456daa2
153d63e5
hex2d204e

2957390 has 16 divisors (see below), whose sum is σ = 5343408. Its totient is φ = 1178496.

The previous prime is 2957389. The next prime is 2957399. The reversal of 2957390 is 937592.

It is a super-2 number, since 2×29573902 = 17492311224200, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2957390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2957399) 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, 3989 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (333963).

22957390 is an apocalyptic number.

2957390 is a deficient number, since it is larger than the sum of its proper divisors (2386018).

2957390 is a wasteful number, since it uses less digits than its factorization.

2957390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 2957390 is about 1719.7063702853. The cubic root of 2957390 is about 143.5388734337.

The spelling of 2957390 in words is "two million, nine hundred fifty-seven thousand, three hundred ninety".

Divisors: 1 2 5 10 433 683 866 1366 2165 3415 4330 6830 295739 591478 1478695 2957390