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53113001720 = 23517935920663
BaseRepresentation
bin110001011101110010…
…000001011011111000
312002002112111001011212
4301131302001123320
51332233412023340
640222203542252
73560122031342
oct613562013370
9162075431155
1053113001720
11205859a5349
12a36352a988
13501599a98c
1427dbd50292
1515acd0aa65
hexc5dc816f8

53113001720 has 64 divisors (see below), whose sum is σ = 120512448000. Its totient is φ = 21066644608.

The previous prime is 53113001699. The next prime is 53113001731. The reversal of 53113001720 is 2710031135.

53113001720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2560109 + ... + 2580771.

It is an arithmetic number, because the mean of its divisors is an integer number (1883007000).

Almost surely, 253113001720 is an apocalyptic number.

It is an amenable number.

53113001720 is an abundant number, since it is smaller than the sum of its proper divisors (67399446280).

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

53113001720 is a wasteful number, since it uses less digits than its factorization.

53113001720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212 (or 21208 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

Adding to 53113001720 its reverse (2710031135), we get a palindrome (55823032855).

The spelling of 53113001720 in words is "fifty-three billion, one hundred thirteen million, one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 179 358 359 716 718 895 1432 1436 1790 1795 2872 3580 3590 7160 7180 14360 20663 41326 64261 82652 103315 128522 165304 206630 257044 321305 413260 514088 642610 826520 1285220 2570440 3698677 7397354 7418017 14794708 14836034 18493385 29589416 29672068 36986770 37090085 59344136 73973540 74180170 147947080 148360340 296720680 1327825043 2655650086 5311300172 6639125215 10622600344 13278250430 26556500860 53113001720