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2972392 = 23371549
BaseRepresentation
bin1011010101101011101000
312121000100121
423111223220
51230104032
6143413024
734156603
oct13255350
95530317
102972392
111750225
12bb4174
13800c17
1457533a
153daa97
hex2d5ae8

2972392 has 8 divisors (see below), whose sum is σ = 5573250. Its totient is φ = 1486192.

The previous prime is 2972383. The next prime is 2972419. The reversal of 2972392 is 2932792.

It can be written as a sum of positive squares in only one way, i.e., 2937796 + 34596 = 1714^2 + 186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×29723922 = 17670228403328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185767 + ... + 185782.

22972392 is an apocalyptic number.

It is an amenable number.

2972392 is a deficient number, since it is larger than the sum of its proper divisors (2600858).

2972392 is a wasteful number, since it uses less digits than its factorization.

2972392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371555 (or 371551 counting only the distinct ones).

The product of its digits is 13608, while the sum is 34.

The square root of 2972392 is about 1724.0626438735. The cubic root of 2972392 is about 143.7811748392.

It can be divided in two parts, 2972 and 392, that added together give a square (3364 = 582).

The spelling of 2972392 in words is "two million, nine hundred seventy-two thousand, three hundred ninety-two".

Divisors: 1 2 4 8 371549 743098 1486196 2972392