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12272545360 = 2451931260453
BaseRepresentation
bin10110110111000000…
…00010111001010000
31011200021221220022001
423123200002321100
5200113232422420
65345443123344
7613060625425
oct133340027120
934607856261
1012272545360
115228593a79
122466073554
13120776c07a
14845cc5d4c
154bc659b0a
hex2db802e50

12272545360 has 80 divisors (see below), whose sum is σ = 31004444160. Its totient is φ = 4500610560.

The previous prime is 12272545357. The next prime is 12272545393. The reversal of 12272545360 is 6354527221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×122725453602 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83107 + ... + 177346.

It is an arithmetic number, because the mean of its divisors is an integer number (387555552).

Almost surely, 212272545360 is an apocalyptic number.

12272545360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12272545360 is an abundant number, since it is smaller than the sum of its proper divisors (18731898800).

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

12272545360 is a wasteful number, since it uses less digits than its factorization.

12272545360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260516 (or 260510 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 12272545360 in words is "twelve billion, two hundred seventy-two million, five hundred forty-five thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 31 38 40 62 76 80 95 124 152 155 190 248 304 310 380 496 589 620 760 1178 1240 1520 2356 2480 2945 4712 5890 9424 11780 23560 47120 260453 520906 1041812 1302265 2083624 2604530 4167248 4948607 5209060 8074043 9897214 10418120 16148086 19794428 20836240 24743035 32296172 39588856 40370215 49486070 64592344 79177712 80740430 98972140 129184688 153406817 161480860 197944280 306813634 322961720 395888560 613627268 645923440 767034085 1227254536 1534068170 2454509072 3068136340 6136272680 12272545360