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109555480 = 23517732207
BaseRepresentation
bin1101000011110…
…10111100011000
321122010222212101
412201322330120
5211021233410
614512053144
72500130506
oct641727430
9248128771
10109555480
1156928721
12308341b4
131990ac38
141079b676
159940d3a
hex687af18

109555480 has 64 divisors (see below), whose sum is σ = 264695040. Its totient is φ = 40660992.

The previous prime is 109555477. The next prime is 109555489. The reversal of 109555480 is 84555901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109555489) 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, 48537 + ... + 50743.

It is an arithmetic number, because the mean of its divisors is an integer number (4135860).

Almost surely, 2109555480 is an apocalyptic number.

109555480 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 109555480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132347520).

109555480 is an abundant number, since it is smaller than the sum of its proper divisors (155139560).

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

109555480 is a wasteful number, since it uses less digits than its factorization.

109555480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 109555480 is about 10466.8753694692. The cubic root of 109555480 is about 478.4956955763.

The spelling of 109555480 in words is "one hundred nine million, five hundred fifty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 73 85 136 146 170 292 340 365 584 680 730 1241 1460 2207 2482 2920 4414 4964 6205 8828 9928 11035 12410 17656 22070 24820 37519 44140 49640 75038 88280 150076 161111 187595 300152 322222 375190 644444 750380 805555 1288888 1500760 1611110 2738887 3222220 5477774 6444440 10955548 13694435 21911096 27388870 54777740 109555480