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93945628540 = 2258952778443
BaseRepresentation
bin101011101111110011…
…0001000011101111100
322222111020021101221201
41113133212020131330
53014400040103130
6111054044505244
76534026444521
oct1273746103574
9288436241851
1093945628540
1136929949225
121625a24b224
138b223b791a
144792d3b148
15269c961bca
hex15df98877c

93945628540 has 24 divisors (see below), whose sum is σ = 199502518320. Its totient is φ = 37156023168.

The previous prime is 93945628423. The next prime is 93945628541. The reversal of 93945628540 is 4582654939.

It is a super-2 number, since 2×939456285402 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93945628541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26387442 + ... + 26391001.

It is an arithmetic number, because the mean of its divisors is an integer number (8312604930).

Almost surely, 293945628540 is an apocalyptic number.

It is an amenable number.

93945628540 is an abundant number, since it is smaller than the sum of its proper divisors (105556889780).

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

93945628540 is a wasteful number, since it uses less digits than its factorization.

93945628540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52778541 (or 52778539 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 93945628540 in words is "ninety-three billion, nine hundred forty-five million, six hundred twenty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 52778443 105556886 211113772 263892215 527784430 1055568860 4697281427 9394562854 18789125708 23486407135 46972814270 93945628540