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52411920 = 24351119853
BaseRepresentation
bin1100011111101…
…1111000010000
310122121210122020
43013323320100
5101404140140
65111211440
71204331301
oct307737020
9118553566
1052411920
1127648940
1215676b80
13ab21192
146d647a8
1549046d0
hex31fbe10

52411920 has 80 divisors (see below), whose sum is σ = 177256512. Its totient is φ = 12705280.

The previous prime is 52411873. The next prime is 52411939. The reversal of 52411920 is 2911425.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 7287 + ... + 12566.

Almost surely, 252411920 is an apocalyptic number.

It is an amenable number.

52411920 is an abundant number, since it is smaller than the sum of its proper divisors (124844592).

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

52411920 is a wasteful number, since it uses less digits than its factorization.

52411920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19880 (or 19874 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 52411920 is about 7239.6077241795. The cubic root of 52411920 is about 374.2340990090.

The spelling of 52411920 in words is "fifty-two million, four hundred eleven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 19853 39706 59559 79412 99265 119118 158824 198530 218383 238236 297795 317648 397060 436766 476472 595590 655149 794120 873532 952944 1091915 1191180 1310298 1588240 1747064 2183830 2382360 2620596 3275745 3494128 4367660 4764720 5241192 6551490 8735320 10482384 13102980 17470640 26205960 52411920