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52187880 = 23353114029
BaseRepresentation
bin1100011100010…
…1001011101000
310122012102022110
43013011023220
5101330003010
65102322320
71202406153
oct307051350
9118172273
1052187880
1127505588
12155893a0
13aa73204
146d06c9a
1548ad120
hex31c52e8

52187880 has 64 divisors (see below), whose sum is σ = 161625600. Its totient is φ = 13466880.

The previous prime is 52187867. The next prime is 52187903. The reversal of 52187880 is 8878125.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3295 + ... + 10734.

It is an arithmetic number, because the mean of its divisors is an integer number (2525400).

Almost surely, 252187880 is an apocalyptic number.

It is an amenable number.

52187880 is an abundant number, since it is smaller than the sum of its proper divisors (109437720).

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

52187880 is a wasteful number, since it uses less digits than its factorization.

52187880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14074 (or 14070 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 52187880 is about 7224.1179392366. The cubic root of 52187880 is about 373.7001037032.

The spelling of 52187880 in words is "fifty-two million, one hundred eighty-seven thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 248 310 372 465 620 744 930 1240 1860 3720 14029 28058 42087 56116 70145 84174 112232 140290 168348 210435 280580 336696 420870 434899 561160 841740 869798 1304697 1683480 1739596 2174495 2609394 3479192 4348990 5218788 6523485 8697980 10437576 13046970 17395960 26093940 52187880