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145612566660 = 223511220625101
BaseRepresentation
bin1000011110011100101…
…1110111000010000100
3111220211222201210210110
42013213023313002010
54341203304113120
6150520554353020
713343262252261
oct2074713670204
9456758653713
10145612566660
1156832552590
122427942b770
13109675c9362
147094bc8268
153bc38292e0
hex21e72f7084

145612566660 has 48 divisors (see below), whose sum is σ = 444780205632. Its totient is φ = 35300016000.

The previous prime is 145612566641. The next prime is 145612566667. The reversal of 145612566660 is 66665216541.

It is not an unprimeable number, because it can be changed into a prime (145612566667) 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, 110311891 + ... + 110313210.

It is an arithmetic number, because the mean of its divisors is an integer number (9266254284).

Almost surely, 2145612566660 is an apocalyptic number.

145612566660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145612566660 is an abundant number, since it is smaller than the sum of its proper divisors (299167638972).

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

145612566660 is a wasteful number, since it uses less digits than its factorization.

145612566660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220625124 (or 220625122 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 145612566660 in words is "one hundred forty-five billion, six hundred twelve million, five hundred sixty-six thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 220625101 441250202 661875303 882500404 1103125505 1323750606 2206251010 2426876111 2647501212 3309376515 4412502020 4853752222 6618753030 7280628333 9707504444 12134380555 13237506060 14561256666 24268761110 29122513332 36403141665 48537522220 72806283330 145612566660