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148718980881 = 312234
BaseRepresentation
bin1000101010000001010…
…1111000111100010001
3112012212111000000000000
42022200111320330101
54414034024342011
6152153123520213
713513252323432
oct2124025707421
9465774000000
10148718980881
1158086a95569
12249a5829069
131104105ba93
1472ab5b1489
153d063dd356
hex22a0578f11

148718980881 has 65 divisors (see below), whose sum is σ = 233218219321. Its totient is φ = 94835292156.

The previous prime is 148718980853. The next prime is 148718980889. The reversal of 148718980881 is 188089817841.

It is a happy number.

The square root of 148718980881 is 385641.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It is not a de Polignac number, because 148718980881 - 211 = 148718978833 is a prime.

It is a super-2 number, since 2×1487189808812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (148718980889) by changing a digit.

It is a polite number, since it can be written in 64 ways as a sum of consecutive naturals, for example, 6466042636 + ... + 6466042658.

Almost surely, 2148718980881 is an apocalyptic number.

148718980881 is the 385641-st square number.

148718980881 is the 192821-st centered octagonal number.

It is an amenable number.

148718980881 is a deficient number, since it is larger than the sum of its proper divisors (84499238440).

148718980881 is an frugal number, since it uses more digits than its factorization.

148718980881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 63.

The spelling of 148718980881 in words is "one hundred forty-eight billion, seven hundred eighteen million, nine hundred eighty thousand, eight hundred eighty-one".

Divisors: 1 3 9 23 27 69 81 207 243 529 621 729 1587 1863 2187 4761 5589 6561 12167 14283 16767 19683 36501 42849 50301 59049 109503 128547 150903 177147 279841 328509 385641 452709 531441 839523 985527 1156923 1358127 2518569 2956581 3470769 4074381 7555707 8869743 10412307 12223143 22667121 26609229 31236921 68001363 79827687 93710763 204004089 239483061 281132289 612012267 718449183 1836036801 2155347549 5508110403 6466042647 16524331209 49572993627 148718980881