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40816190923020 = 223251367165879017
BaseRepresentation
bin10010100011111010000101…
…00011111010000100001100
312100111222201112010212020200
421101331002203322010030
520322213024334014040
6222450411012213500
711411605155316662
oct1121750243720414
9170458645125220
1040816190923020
111200705a777987
1246b254b90a290
1319a0c47a26c56
14a1172acb0c32
154abac9669630
hex251f428fa10c

40816190923020 has 72 divisors (see below), whose sum is σ = 123899683156704. Its totient is φ = 10876355321088.

The previous prime is 40816190922989. The next prime is 40816190923087. The reversal of 40816190923020 is 2032909161804.

40816190923020 is a `hidden beast` number, since 4 + 0 + 8 + 1 + 619 + 0 + 9 + 2 + 3 + 0 + 20 = 666.

It is a super-2 number, since 2×408161909230202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82693449 + ... + 83185568.

It is an arithmetic number, because the mean of its divisors is an integer number (1720828932732).

Almost surely, 240816190923020 is an apocalyptic number.

It is an amenable number.

40816190923020 is an abundant number, since it is smaller than the sum of its proper divisors (83083492233684).

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

40816190923020 is a wasteful number, since it uses less digits than its factorization.

40816190923020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165880399 (or 165880394 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 40816190923020 in words is "forty trillion, eight hundred sixteen billion, one hundred ninety million, nine hundred twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1367 2734 4101 5468 6835 8202 12303 13670 16404 20505 24606 27340 41010 49212 61515 82020 123030 246060 165879017 331758034 497637051 663516068 829395085 995274102 1492911153 1658790170 1990548204 2488185255 2985822306 3317580340 4976370510 5971644612 7464555765 9952741020 14929111530 29858223060 226756616239 453513232478 680269848717 907026464956 1133783081195 1360539697434 2040809546151 2267566162390 2721079394868 3401349243585 4081619092302 4535132324780 6802698487170 8163238184604 10204047730755 13605396974340 20408095461510 40816190923020