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54572108820 = 22353797253423
BaseRepresentation
bin110010110100110000…
…000100110000010100
312012212020001100211120
4302310300010300110
51343230424440240
641023045403540
73641230162035
oct626460046024
9165766040746
1054572108820
1121164595089
12a6b01095b0
1351b9072b68
1428d9a4aa8c
151645e78ad0
hexcb4c04c14

54572108820 has 96 divisors (see below), whose sum is σ = 158550163968. Its totient is φ = 14013222912.

The previous prime is 54572108819. The next prime is 54572108869. The reversal of 54572108820 is 2880127545.

It is a super-2 number, since 2×545721088202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 88629 + ... + 342051.

It is an arithmetic number, because the mean of its divisors is an integer number (1651564208).

Almost surely, 254572108820 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 54572108820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79275081984).

54572108820 is an abundant number, since it is smaller than the sum of its proper divisors (103978055148).

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

54572108820 is a wasteful number, since it uses less digits than its factorization.

54572108820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253569 (or 253567 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 54572108820 in words is "fifty-four billion, five hundred seventy-two million, one hundred eight thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 97 111 148 185 194 222 291 370 388 444 485 555 582 740 970 1110 1164 1455 1940 2220 2910 3589 5820 7178 10767 14356 17945 21534 35890 43068 53835 71780 107670 215340 253423 506846 760269 1013692 1267115 1520538 2534230 3041076 3801345 5068460 7602690 9376651 15205380 18753302 24582031 28129953 37506604 46883255 49164062 56259906 73746093 93766510 98328124 112519812 122910155 140649765 147492186 187533020 245820310 281299530 294984372 368730465 491640620 562599060 737460930 909535147 1474921860 1819070294 2728605441 3638140588 4547675735 5457210882 9095351470 10914421764 13643027205 18190702940 27286054410 54572108820