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145184130873969 = 31179736923149503
BaseRepresentation
bin100001000000101101010000…
…100011000011101001110001
3201001001110121201002020001020
4201000231100203003221301
5123012144100000431334
61232440400255130053
742403131051455535
oct4100552043035161
9631043551066036
10145184130873969
1142295275a32710
12143497a7813929
136301a601a1115
1427bcd4132dbc5
1511bb88bddde49
hex840b508c3a71

145184130873969 has 32 divisors (see below), whose sum is σ = 211449023299584. Its totient is φ = 87877012476480.

The previous prime is 145184130873967. The next prime is 145184130874033. The reversal of 145184130873969 is 969378031481541.

It is not a de Polignac number, because 145184130873969 - 21 = 145184130873967 is a prime.

It is a super-2 number, since 2×1451841308739692 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145184130873967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971037072 + ... + 971186574.

It is an arithmetic number, because the mean of its divisors is an integer number (6607781978112).

Almost surely, 2145184130873969 is an apocalyptic number.

It is an amenable number.

145184130873969 is a deficient number, since it is larger than the sum of its proper divisors (66264892425615).

145184130873969 is a wasteful number, since it uses less digits than its factorization.

145184130873969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187237.

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 145184130873969 in words is "one hundred forty-five trillion, one hundred eighty-four billion, one hundred thirty million, eight hundred seventy-three thousand, nine hundred sixty-nine".

Divisors: 1 3 11 33 797 2391 8767 26301 36923 110769 149503 406153 448509 1218459 1644533 4933599 29427631 88282893 119153891 323703941 357461673 971111823 1310692801 3932078403 5520099269 16560297807 60721091959 182163275877 4399519117393 13198557352179 48394710291323 145184130873969