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380019540 = 223553119503
BaseRepresentation
bin10110101001101…
…010001101010100
3222111001222210210
4112221222031110
51234241111130
6101413045420
712263053455
oct2651521524
9874058723
10380019540
1118556933a
12a7326870
1360967044
143868312c
15235685b0
hex16a6a354

380019540 has 48 divisors (see below), whose sum is σ = 1084140288. Its totient is φ = 99425664.

The previous prime is 380019539. The next prime is 380019553. The reversal of 380019540 is 45910083.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 380019498 and 380019507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56572 + ... + 62931.

It is an arithmetic number, because the mean of its divisors is an integer number (22586256).

Almost surely, 2380019540 is an apocalyptic number.

380019540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

380019540 is an abundant number, since it is smaller than the sum of its proper divisors (704120748).

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

380019540 is a wasteful number, since it uses less digits than its factorization.

380019540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119568 (or 119566 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 380019540 is about 19494.0898736002. The cubic root of 380019540 is about 724.3280591557.

The spelling of 380019540 in words is "three hundred eighty million, nineteen thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 119503 239006 358509 478012 597515 717018 1195030 1434036 1792545 2390060 3585090 6333659 7170180 12667318 19000977 25334636 31668295 38001954 63336590 76003908 95004885 126673180 190009770 380019540