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145897008017480 = 23558728909214939
BaseRepresentation
bin100001001011000101001011…
…010101100011000001001000
3201010120121200100012021211022
4201023011023111203001020
5123110334033023024410
61234144054334252012
742505465603300526
oct4113051325430110
9633517610167738
10145897008017480
114253a634553875
1214443998957008
13635404b4258b5
14280564a93d316
1511d01b172b455
hex84b14b563048

145897008017480 has 64 divisors (see below), whose sum is σ = 328840402968000. Its totient is φ = 58257098152704.

The previous prime is 145897008017443. The next prime is 145897008017489. The reversal of 145897008017480 is 84710800798541.

It is not an unprimeable number, because it can be changed into a prime (145897008017489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678675851 + ... + 678890789.

It is an arithmetic number, because the mean of its divisors is an integer number (5138131296375).

Almost surely, 2145897008017480 is an apocalyptic number.

145897008017480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145897008017480 is an abundant number, since it is smaller than the sum of its proper divisors (182943394950520).

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

145897008017480 is a wasteful number, since it uses less digits than its factorization.

145897008017480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244446 (or 244442 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 62.

The spelling of 145897008017480 in words is "one hundred forty-five trillion, eight hundred ninety-seven billion, eight million, seventeen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 587 1174 2348 2935 4696 5870 11740 23480 28909 57818 115636 144545 214939 231272 289090 429878 578180 859756 1074695 1156360 1719512 2149390 4298780 8597560 16969583 33939166 67878332 84847915 126169193 135756664 169695830 252338386 339391660 504676772 630845965 678783320 1009353544 1261691930 2523383860 5046767720 6213671551 12427343102 24854686204 31068357755 49709372408 62136715510 124273431020 248546862040 3647425200437 7294850400874 14589700801748 18237126002185 29179401603496 36474252004370 72948504008740 145897008017480