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145188702664 = 23659118723201
BaseRepresentation
bin1000011100110111101…
…0111100100111001000
3111212202110011021200221
42013031322330213020
54334321301441124
6150410533435424
713326624416215
oct2071572744710
9455673137627
10145188702664
1156635268265
122417b49bb74
13108ca850965
1470547b0b0c
153b9b4eece4
hex21cdebc9c8

145188702664 has 32 divisors (see below), whose sum is σ = 272883362400. Its totient is φ = 72420006400.

The previous prime is 145188702661. The next prime is 145188702677. The reversal of 145188702664 is 466207881541.

It is not an unprimeable number, because it can be changed into a prime (145188702661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6246264 + ... + 6269464.

It is an arithmetic number, because the mean of its divisors is an integer number (8527605075).

Almost surely, 2145188702664 is an apocalyptic number.

It is an amenable number.

145188702664 is a deficient number, since it is larger than the sum of its proper divisors (127694659736).

145188702664 is a wasteful number, since it uses less digits than its factorization.

145188702664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25053 (or 25049 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 145188702664 in words is "one hundred forty-five billion, one hundred eighty-eight million, seven hundred two thousand, six hundred sixty-four".

Divisors: 1 2 4 8 659 1187 1318 2374 2636 4748 5272 9496 23201 46402 92804 185608 782233 1564466 3128932 6257864 15289459 27539587 30578918 55079174 61157836 110158348 122315672 220316696 18148587833 36297175666 72594351332 145188702664