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207073984780 = 225131375813419
BaseRepresentation
bin1100000011011010010…
…0100100000100001100
3201210111100020100022201
43000312210210010030
511343041420003110
6235043430051244
720650325554225
oct3006644440414
9653440210281
10207073984780
117a901958713
12341707a9b24
13166b0a5a5a0
14a0457ba24c
1555be504b3a
hex303692410c

207073984780 has 48 divisors (see below), whose sum is σ = 471724152480. Its totient is φ = 75899985408.

The previous prime is 207073984769. The next prime is 207073984781. The reversal of 207073984780 is 87489370702.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (207073984781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2871090 + ... + 2942329.

It is an arithmetic number, because the mean of its divisors is an integer number (9827586510).

Almost surely, 2207073984780 is an apocalyptic number.

207073984780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207073984780 is an abundant number, since it is smaller than the sum of its proper divisors (264650167700).

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

207073984780 is a wasteful number, since it uses less digits than its factorization.

207073984780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813578 (or 5813576 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 207073984780 in words is "two hundred seven billion, seventy-three million, nine hundred eighty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 137 260 274 548 685 1370 1781 2740 3562 7124 8905 17810 35620 5813419 11626838 23253676 29067095 58134190 75574447 116268380 151148894 302297788 377872235 755744470 796438403 1511488940 1592876806 3185753612 3982192015 7964384030 10353699239 15928768060 20707398478 41414796956 51768496195 103536992390 207073984780