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2972220 = 223549537
BaseRepresentation
bin1011010101101000111100
312121000010020
423111220330
51230102340
6143412140
734156236
oct13255074
95530106
102972220
111750089
12bb4050
13800b14
14575256
153da9d0
hex2d5a3c

2972220 has 24 divisors (see below), whose sum is σ = 8322384. Its totient is φ = 792576.

The previous prime is 2972219. The next prime is 2972251. The reversal of 2972220 is 222792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24709 + ... + 24828.

It is an arithmetic number, because the mean of its divisors is an integer number (346766).

22972220 is an apocalyptic number.

2972220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2972220 is an abundant number, since it is smaller than the sum of its proper divisors (5350164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2972220 is a wasteful number, since it uses less digits than its factorization.

2972220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49549 (or 49547 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2972220 is about 1724.0127609737. The cubic root of 2972220 is about 143.7784014455.

The spelling of 2972220 in words is "two million, nine hundred seventy-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 49537 99074 148611 198148 247685 297222 495370 594444 743055 990740 1486110 2972220