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2790472 = 231492341
BaseRepresentation
bin1010101001010001001000
312020202210211
422221101020
51203243342
6135450504
732501326
oct12512110
95222724
102790472
111636583
12b26a34
13769189
14528d16
153a1c17
hex2a9448

2790472 has 16 divisors (see below), whose sum is σ = 5269500. Its totient is φ = 1385280.

The previous prime is 2790461. The next prime is 2790479. The reversal of 2790472 is 2740972.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2735716 + 54756 = 1654^2 + 234^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2790479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22 + ... + 2362.

22790472 is an apocalyptic number.

It is an amenable number.

2790472 is a deficient number, since it is larger than the sum of its proper divisors (2479028).

2790472 is a wasteful number, since it uses less digits than its factorization.

2790472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2790472 is about 1670.4705923781. The cubic root of 2790472 is about 140.7859199505.

The spelling of 2790472 in words is "two million, seven hundred ninety thousand, four hundred seventy-two".

Divisors: 1 2 4 8 149 298 596 1192 2341 4682 9364 18728 348809 697618 1395236 2790472