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160986144490 = 25313172329851
BaseRepresentation
bin1001010111101110000…
…1011001111011101010
3120101112101211110220221
42111323201121323222
510114144423110430
6201542255440254
714426246436013
oct2257341317352
9511471743827
10160986144490
1162301533106
1227249b2608a
1312247665382
147b1289600a
1542c333357a
hex257b859eea

160986144490 has 32 divisors (see below), whose sum is σ = 290879320896. Its totient is φ = 64149321600.

The previous prime is 160986144479. The next prime is 160986144491. The reversal of 160986144490 is 94441689061.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (160986144491) 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, 5378065 + ... + 5407915.

It is an arithmetic number, because the mean of its divisors is an integer number (9089978778).

Almost surely, 2160986144490 is an apocalyptic number.

160986144490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160986144490 is a deficient number, since it is larger than the sum of its proper divisors (129893176406).

160986144490 is a wasteful number, since it uses less digits than its factorization.

160986144490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31894.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 160986144490 in words is "one hundred sixty billion, nine hundred eighty-six million, one hundred forty-four thousand, four hundred ninety".

Divisors: 1 2 5 10 313 626 1565 1723 3130 3446 8615 17230 29851 59702 149255 298510 539299 1078598 2696495 5392990 9343363 18686726 46716815 51433273 93433630 102866546 257166365 514332730 16098614449 32197228898 80493072245 160986144490