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669530032060 = 2251917417101161
BaseRepresentation
bin10011011111000110001…
…10011000011110111100
32101000011200212122112211
421233203012120132330
541432144142011220
61231324452110204
766241402241521
oct11574306303674
92330150778484
10669530032060
11238a4528080a
12a9914305364
134b1a0906506
14245966c1148
1512639098b5a
hex9be31987bc

669530032060 has 48 divisors (see below), whose sum is σ = 1480113361440. Its totient is φ = 253699568640.

The previous prime is 669530031967. The next prime is 669530032069. The reversal of 669530032060 is 60230035966.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669530032069) 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, 6567880 + ... + 6669040.

It is an arithmetic number, because the mean of its divisors is an integer number (30835695030).

Almost surely, 2669530032060 is an apocalyptic number.

It is an amenable number.

669530032060 is an abundant number, since it is smaller than the sum of its proper divisors (810583329380).

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

669530032060 is a wasteful number, since it uses less digits than its factorization.

669530032060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118606 (or 118604 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 669530032060 in words is "six hundred sixty-nine billion, five hundred thirty million, thirty-two thousand, sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 17417 34834 69668 87085 101161 174170 202322 330923 348340 404644 505805 661846 1011610 1323692 1654615 1922059 2023220 3309230 3844118 6618460 7688236 9610295 19220590 38441180 1761921137 3523842274 7047684548 8809605685 17619211370 33476501603 35238422740 66953003206 133906006412 167382508015 334765016030 669530032060