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18740150 = 25211132621
BaseRepresentation
bin100011101111…
…1001110110110
31022021002122122
41013133032312
514244141100
61505355542
7315201002
oct107371666
938232578
1018740150
11a63a830
126338bb2
133b61b60
1426bb702
1519a2985
hex11df3b6

18740150 has 48 divisors (see below), whose sum is σ = 40966128. Its totient is φ = 6288000.

The previous prime is 18740149. The next prime is 18740153. The reversal of 18740150 is 5104781.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18740153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5840 + ... + 8460.

It is an arithmetic number, because the mean of its divisors is an integer number (853461).

Almost surely, 218740150 is an apocalyptic number.

18740150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18740150 is an abundant number, since it is smaller than the sum of its proper divisors (22225978).

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

18740150 is a wasteful number, since it uses less digits than its factorization.

18740150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 18740150 is about 4328.9894894767. The cubic root of 18740150 is about 265.6181133163.

The spelling of 18740150 in words is "eighteen million, seven hundred forty thousand, one hundred fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 110 130 143 275 286 325 550 650 715 1430 2621 3575 5242 7150 13105 26210 28831 34073 57662 65525 68146 131050 144155 170365 288310 340730 374803 720775 749606 851825 1441550 1703650 1874015 3748030 9370075 18740150