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52952540 = 2252647627
BaseRepresentation
bin1100100111111…
…1110111011100
310200122021020012
43021333313130
5102023440130
65130542352
71212042404
oct311776734
9120567205
1052952540
1127988033
12158979b8
13ac80284
147065804
1549ae995
hex327fddc

52952540 has 12 divisors (see below), whose sum is σ = 111200376. Its totient is φ = 21181008.

The previous prime is 52952531. The next prime is 52952561. The reversal of 52952540 is 4525925.

It is a junction number, because it is equal to n+sod(n) for n = 52952497 and 52952506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323794 + ... + 1323833.

It is an arithmetic number, because the mean of its divisors is an integer number (9266698).

Almost surely, 252952540 is an apocalyptic number.

It is an amenable number.

52952540 is an abundant number, since it is smaller than the sum of its proper divisors (58247836).

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

52952540 is a wasteful number, since it uses less digits than its factorization.

52952540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647636 (or 2647634 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 52952540 is about 7276.8495930588. The cubic root of 52952540 is about 375.5164203521.

The spelling of 52952540 in words is "fifty-two million, nine hundred fifty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2647627 5295254 10590508 13238135 26476270 52952540