Search a number
-
+
57800255032780 = 22513379173655003
BaseRepresentation
bin11010010010001101010111…
…01010110100110111001100
321120122122120011010222201021
431021012223222310313030
530033444410242022110
6322533023125323524
715113634126266221
oct1511065352646714
9246578504128637
1057800255032780
1117464a50131017
1265960b05665a4
132633704ab0330
14103b7939d1948
156a37b5c2b2da
hex3491abab4dcc

57800255032780 has 96 divisors (see below), whose sum is σ = 134265245615424. Its totient is φ = 20762536356864.

The previous prime is 57800255032733. The next prime is 57800255032781. The reversal of 57800255032780 is 8723055200875.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (57800255032781) 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, 87916759 + ... + 88571761.

It is an arithmetic number, because the mean of its divisors is an integer number (1398596308494).

Almost surely, 257800255032780 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 57800255032780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67132622807712).

57800255032780 is an abundant number, since it is smaller than the sum of its proper divisors (76464990582644).

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

57800255032780 is a wasteful number, since it uses less digits than its factorization.

57800255032780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664235 (or 664233 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 57800255032780 in words is "fifty-seven trillion, eight hundred billion, two hundred fifty-five million, thirty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1924 2405 4810 9173 9620 18346 36692 45865 91730 119249 183460 238498 339401 476996 596245 655003 678802 1192490 1310006 1357604 1697005 2384980 2620012 3275015 3394010 4412213 6550030 6788020 8515039 8824426 13100060 17030078 17648852 22061065 24235111 34060156 42575195 44122130 48470222 85150390 88244260 96940444 121175555 170300780 242351110 315056443 484702220 630112886 1260225772 1575282215 3150564430 6008342519 6301128860 12016685038 24033370076 30041712595 60083425190 78108452747 120166850380 156216905494 222308673203 312433810988 390542263735 444617346406 781084527470 889234692812 1111543366015 1562169054940 2223086732030 2890012751639 4446173464060 5780025503278 11560051006556 14450063758195 28900127516390 57800255032780