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652152980 = 225171918097
BaseRepresentation
bin100110110111110…
…001000010010100
31200110010210201002
4212313301002110
52313422343410
6144413522432
722106131433
oct4667610224
91613123632
10652152980
1130513a206
121624a3418
13a5158c4b
146288111a
153c3c07a5
hex26df1094

652152980 has 24 divisors (see below), whose sum is σ = 1450082088. Its totient is φ = 245516288.

The previous prime is 652152973. The next prime is 652153043. The reversal of 652152980 is 89251256.

It can be written as a sum of positive squares in 4 ways, for example, as 182304004 + 469848976 = 13502^2 + 21676^2 .

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, 958709 + ... + 959388.

It is an arithmetic number, because the mean of its divisors is an integer number (60420087).

Almost surely, 2652152980 is an apocalyptic number.

It is an amenable number.

652152980 is an abundant number, since it is smaller than the sum of its proper divisors (797929108).

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

652152980 is a wasteful number, since it uses less digits than its factorization.

652152980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918123 (or 1918121 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 652152980 is about 25537.2860735044. The cubic root of 652152980 is about 867.1944592499.

The spelling of 652152980 in words is "six hundred fifty-two million, one hundred fifty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 1918097 3836194 7672388 9590485 19180970 32607649 38361940 65215298 130430596 163038245 326076490 652152980