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2900620 = 225145031
BaseRepresentation
bin1011000100001010001100
312110100220101
423010022030
51220304440
6142100444
733440422
oct13041214
95410811
102900620
111701308
12b7a724
137a7358
14557112
153c469a
hex2c428c

2900620 has 12 divisors (see below), whose sum is σ = 6091344. Its totient is φ = 1160240.

The previous prime is 2900603. The next prime is 2900621. The reversal of 2900620 is 260092.

It is not an unprimeable number, because it can be changed into a prime (2900621) 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, 72496 + ... + 72535.

It is an arithmetic number, because the mean of its divisors is an integer number (507612).

22900620 is an apocalyptic number.

2900620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2900620 is an abundant number, since it is smaller than the sum of its proper divisors (3190724).

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

2900620 is a wasteful number, since it uses less digits than its factorization.

2900620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145040 (or 145038 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2900620 is about 1703.1206651321. The cubic root of 2900620 is about 142.6144765964.

The spelling of 2900620 in words is "two million, nine hundred thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 145031 290062 580124 725155 1450310 2900620