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203301031220 = 225711503126241
BaseRepresentation
bin1011110101010110101…
…1111000110100110100
3201102202101202110000222
42331111223320310310
511312330030444340
6233221210353512
720454663152510
oct2752553706464
9642671673028
10203301031220
117924614a881
123349912b898
131622c1a29a1
149ba8689140
15544d17c8b5
hex2f55af8d34

203301031220 has 48 divisors (see below), whose sum is σ = 487968757248. Its totient is φ = 69696599040.

The previous prime is 203301031133. The next prime is 203301031231. The reversal of 203301031220 is 22130103302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547300 + ... + 1673540.

It is an arithmetic number, because the mean of its divisors is an integer number (10166015776).

Almost surely, 2203301031220 is an apocalyptic number.

203301031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203301031220 is an abundant number, since it is smaller than the sum of its proper divisors (284667726028).

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

203301031220 is a wasteful number, since it uses less digits than its factorization.

203301031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137760 (or 137758 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203301031220 its reverse (22130103302), we get a palindrome (225431134522).

The spelling of 203301031220 in words is "two hundred three billion, three hundred one million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 11503 23006 46012 57515 80521 115030 126241 161042 230060 252482 322084 402605 504964 631205 805210 883687 1262410 1610420 1767374 2524820 3534748 4418435 8836870 17673740 1452150223 2904300446 5808600892 7260751115 10165051561 14521502230 20330103122 29043004460 40660206244 50825257805 101650515610 203301031220