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107745220 = 225113891259
BaseRepresentation
bin1100110110000…
…00111111000100
321111202000122201
412123000333010
5210040321340
614405204244
72445551002
oct633007704
9244660581
10107745220
1155901640
1230100684
1319425c8b
1410449a72
1596d479a
hex66c0fc4

107745220 has 48 divisors (see below), whose sum is σ = 247665600. Its totient is φ = 39048320.

The previous prime is 107745217. The next prime is 107745223. The reversal of 107745220 is 22547701.

It is an interprime number because it is at equal distance from previous prime (107745217) and next prime (107745223).

It is not an unprimeable number, because it can be changed into a prime (107745223) 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, 84951 + ... + 86209.

It is an arithmetic number, because the mean of its divisors is an integer number (5159700).

Almost surely, 2107745220 is an apocalyptic number.

107745220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 107745220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123832800).

107745220 is an abundant number, since it is smaller than the sum of its proper divisors (139920380).

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

107745220 is a wasteful number, since it uses less digits than its factorization.

107745220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 107745220 is about 10380.0394989615. The cubic root of 107745220 is about 475.8455410621.

The spelling of 107745220 in words is "one hundred seven million, seven hundred forty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 389 778 1259 1556 1945 2518 3890 4279 5036 6295 7780 8558 12590 13849 17116 21395 25180 27698 42790 55396 69245 85580 138490 276980 489751 979502 1959004 2448755 4897510 5387261 9795020 10774522 21549044 26936305 53872610 107745220