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38220770560 = 28574265711
BaseRepresentation
bin100011100110001000…
…101010110100000000
310122122200010022112211
4203212020222310000
51111234004124220
625320335431504
72522101121650
oct434610526400
9118580108484
1038220770560
11152336a0695
1274a8085594
1337b158558b
141bc8180360
15eda6d2b5a
hex8e622ad00

38220770560 has 72 divisors (see below), whose sum is σ = 104629383936. Its totient is φ = 13104261120.

The previous prime is 38220770551. The next prime is 38220770561. The reversal of 38220770560 is 6507702283.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220770561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2123896 + ... + 2141815.

It is an arithmetic number, because the mean of its divisors is an integer number (1453185888).

Almost surely, 238220770560 is an apocalyptic number.

It is an amenable number.

38220770560 is an abundant number, since it is smaller than the sum of its proper divisors (66408613376).

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

38220770560 is an equidigital number, since it uses as much as digits as its factorization.

38220770560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265739 (or 4265725 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 38220770560 in words is "thirty-eight billion, two hundred twenty million, seven hundred seventy thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 560 640 896 1120 1280 1792 2240 4480 8960 4265711 8531422 17062844 21328555 29859977 34125688 42657110 59719954 68251376 85314220 119439908 136502752 149299885 170628440 238879816 273005504 298599770 341256880 477759632 546011008 597199540 682513760 955519264 1092022016 1194399080 1365027520 1911038528 2388798160 2730055040 3822077056 4777596320 5460110080 7644154112 9555192640 19110385280 38220770560