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620117124 = 2231171127521
BaseRepresentation
bin100100111101100…
…011110010000100
31121012212012202220
4210331203302010
52232222221444
6141311132340
721236623434
oct4475436204
91535765686
10620117124
112990491a0
121538140b0
139b620413
145c5022c4
1539693619
hex24f63c84

620117124 has 96 divisors (see below), whose sum is σ = 1616412672. Its totient is φ = 183456000.

The previous prime is 620117089. The next prime is 620117129. The reversal of 620117124 is 421711026.

It is a junction number, because it is equal to n+sod(n) for n = 620117094 and 620117103.

It is not an unprimeable number, because it can be changed into a prime (620117129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1189984 + ... + 1190504.

It is an arithmetic number, because the mean of its divisors is an integer number (16837632).

Almost surely, 2620117124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620117124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (808206336).

620117124 is an abundant number, since it is smaller than the sum of its proper divisors (996295548).

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

620117124 is a wasteful number, since it uses less digits than its factorization.

620117124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 620117124 is about 24902.1509914304. The cubic root of 620117124 is about 852.7555894942.

The spelling of 620117124 in words is "six hundred twenty million, one hundred seventeen thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 71 127 132 142 213 254 284 381 426 508 521 762 781 852 1042 1397 1524 1562 1563 2084 2343 2794 3124 3126 4191 4686 5588 5731 6252 8382 9017 9372 11462 16764 17193 18034 22924 27051 34386 36068 36991 54102 66167 68772 73982 99187 108204 110973 132334 147964 198374 198501 221946 264668 297561 396748 397002 406901 443892 595122 727837 794004 813802 1190244 1220703 1455674 1627604 2183511 2441406 2911348 4367022 4697857 4882812 8734044 9395714 14093571 18791428 28187142 51676427 56374284 103352854 155029281 206705708 310058562 620117124