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7485380 = 2257127421
BaseRepresentation
bin11100100011011111000100
3112002022000022
4130203133010
53404013010
6424234312
7120424160
oct34433704
915068008
107485380
114252971
12260b998
131721126
14dcbca0
159ccd55
hex7237c4

7485380 has 48 divisors (see below), whose sum is σ = 18149376. Its totient is φ = 2540160.

The previous prime is 7485377. The next prime is 7485383. The reversal of 7485380 is 835847.

It is an interprime number because it is at equal distance from previous prime (7485377) and next prime (7485383).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 7485380.

It is not an unprimeable number, because it can be changed into a prime (7485383) 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, 17570 + ... + 17990.

It is an arithmetic number, because the mean of its divisors is an integer number (378112).

Almost surely, 27485380 is an apocalyptic number.

7485380 is a gapful number since it is divisible by the number (70) 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 7485380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9074688).

7485380 is an abundant number, since it is smaller than the sum of its proper divisors (10663996).

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

7485380 is a wasteful number, since it uses less digits than its factorization.

7485380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 7485380 is about 2735.9422508525. The cubic root of 7485380 is about 195.6161096240.

The spelling of 7485380 in words is "seven million, four hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 127 140 254 421 508 635 842 889 1270 1684 1778 2105 2540 2947 3556 4210 4445 5894 8420 8890 11788 14735 17780 29470 53467 58940 106934 213868 267335 374269 534670 748538 1069340 1497076 1871345 3742690 7485380