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121488080272 = 24131964747513
BaseRepresentation
bin111000100100101000…
…0001111110110010000
3102121120201020220212121
41301021100033312100
53442301422032042
6131451051104024
711530405433566
oct1611120176620
9377521226777
10121488080272
1147582943929
121b666142014
13b5c1595040
145c46c25a36
153260948367
hex1c4940fd90

121488080272 has 80 divisors (see below), whose sum is σ = 267249144960. Its totient is φ = 53037075456.

The previous prime is 121488080267. The next prime is 121488080297. The reversal of 121488080272 is 272080884121.

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, 2533188 + ... + 2580700.

It is an arithmetic number, because the mean of its divisors is an integer number (3340614312).

Almost surely, 2121488080272 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 121488080272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133624572480).

121488080272 is an abundant number, since it is smaller than the sum of its proper divisors (145761064688).

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

121488080272 is a wasteful number, since it uses less digits than its factorization.

121488080272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48200 (or 48194 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

The spelling of 121488080272 in words is "one hundred twenty-one billion, four hundred eighty-eight million, eighty thousand, two hundred seventy-two".

Divisors: 1 2 4 8 13 16 19 26 38 52 76 104 152 208 247 304 494 647 988 1294 1976 2588 3952 5176 8411 10352 12293 16822 24586 33644 47513 49172 67288 95026 98344 134576 159809 190052 196688 319618 380104 617669 639236 760208 902747 1235338 1278472 1805494 2470676 2556944 3610988 4941352 7221976 9882704 11735711 14443952 23471422 30740911 46942844 61481822 93885688 122963644 187771376 245927288 399631843 491854576 584077309 799263686 1168154618 1598527372 2336309236 3197054744 4672618472 6394109488 7593005017 9345236944 15186010034 30372020068 60744040136 121488080272