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993760020 = 2232511717069
BaseRepresentation
bin111011001110111…
…001001100010100
32120020221020110200
4323032321030110
54013400310040
6242335420500
733424551351
oct7316711424
92506836420
10993760020
1146aa51680
12238984730
1312ab63ba6
1495da5628
155c39c630
hex3b3b9314

993760020 has 144 divisors (see below), whose sum is σ = 3335230080. Its totient is φ = 237484800.

The previous prime is 993759989. The next prime is 993760037. The reversal of 993760020 is 20067399.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137046 + ... + 144114.

It is an arithmetic number, because the mean of its divisors is an integer number (23161320).

Almost surely, 2993760020 is an apocalyptic number.

993760020 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 993760020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667615040).

993760020 is an abundant number, since it is smaller than the sum of its proper divisors (2341470060).

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

993760020 is a wasteful number, since it uses less digits than its factorization.

993760020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166 (or 7161 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 993760020 is about 31523.9594594334. The cubic root of 993760020 is about 997.9156652337.

The spelling of 993760020 in words is "nine hundred ninety-three million, seven hundred sixty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 71 90 99 110 132 142 165 180 198 213 220 284 330 355 396 426 495 639 660 710 781 852 990 1065 1278 1420 1562 1980 2130 2343 2556 3124 3195 3905 4260 4686 6390 7029 7069 7810 9372 11715 12780 14058 14138 15620 21207 23430 28116 28276 35145 35345 42414 46860 63621 70290 70690 77759 84828 106035 127242 140580 141380 155518 212070 233277 254484 311036 318105 388795 424140 466554 501899 636210 699831 777590 933108 1003798 1166385 1272420 1399662 1505697 1555180 2007596 2332770 2509495 2799324 3011394 3499155 4517091 4665540 5018990 5520889 6022788 6998310 7528485 9034182 10037980 11041778 13996620 15056970 16562667 18068364 22083556 22585455 27604445 30113940 33125334 45170910 49688001 55208890 66250668 82813335 90341820 99376002 110417780 165626670 198752004 248440005 331253340 496880010 993760020