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145106405015 = 51113769263909
BaseRepresentation
bin1000011100100100000…
…1000000011010010111
3111212112201022010112212
42013021001000122113
54334134214430030
6150354433504035
713324605043325
oct2071101003227
9455481263485
10145106405015
11565a2867880
1224157a1201b
13108b6797820
1470478aad15
153b94195595
hex21c9040697

145106405015 has 32 divisors (see below), whose sum is σ = 204836385600. Its totient is φ = 97287045120.

The previous prime is 145106404999. The next prime is 145106405021. The reversal of 145106405015 is 510504601541.

It is not a de Polignac number, because 145106405015 - 24 = 145106404999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417881 + ... + 681789.

It is an arithmetic number, because the mean of its divisors is an integer number (6401137050).

Almost surely, 2145106405015 is an apocalyptic number.

145106405015 is a deficient number, since it is larger than the sum of its proper divisors (59729980585).

145106405015 is a wasteful number, since it uses less digits than its factorization.

145106405015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264707.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 145106405015 in words is "one hundred forty-five billion, one hundred six million, four hundred five thousand, fifteen".

Divisors: 1 5 11 13 55 65 143 715 769 3845 8459 9997 42295 49985 109967 263909 549835 1319545 2902999 3430817 14514995 17154085 37738987 188694935 202946021 1014730105 2232406231 2638298273 11162031155 13191491365 29021281003 145106405015