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38141720 = 235953543
BaseRepresentation
bin1001000101111…
…1111100011000
32122202210121022
42101133330120
534231013340
63441302012
7642125231
oct221377430
978683538
1038141720
111a591491
1210934908
137b95a86
1450cc088
1535363b5
hex245ff18

38141720 has 16 divisors (see below), whose sum is σ = 85818960. Its totient is φ = 15256672.

The previous prime is 38141717. The next prime is 38141723. The reversal of 38141720 is 2714183.

It is an interprime number because it is at equal distance from previous prime (38141717) and next prime (38141723).

It is a self number, because there is not a number n which added to its sum of digits gives 38141720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38141723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476732 + ... + 476811.

It is an arithmetic number, because the mean of its divisors is an integer number (5363685).

Almost surely, 238141720 is an apocalyptic number.

It is an amenable number.

38141720 is an abundant number, since it is smaller than the sum of its proper divisors (47677240).

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

38141720 is a wasteful number, since it uses less digits than its factorization.

38141720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953554 (or 953550 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 38141720 is about 6175.8983152251. The cubic root of 38141720 is about 336.6149688070.

The spelling of 38141720 in words is "thirty-eight million, one hundred forty-one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 953543 1907086 3814172 4767715 7628344 9535430 19070860 38141720