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1380754380 = 223529793537
BaseRepresentation
bin101001001001100…
…1010001111001100
310120020010120221010
41102103022033030
510311433120010
6345002205220
746134134655
oct12223121714
93506116833
101380754380
11649444225
123264b3810
131900a0835
14d154252c
1581342620
hex524ca3cc

1380754380 has 48 divisors (see below), whose sum is σ = 3999431520. Its totient is φ = 355504128.

The previous prime is 1380754379. The next prime is 1380754387. The reversal of 1380754380 is 834570831.

It is not an unprimeable number, because it can be changed into a prime (1380754387) 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, 395029 + ... + 398508.

It is an arithmetic number, because the mean of its divisors is an integer number (83321490).

Almost surely, 21380754380 is an apocalyptic number.

1380754380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380754380 is an abundant number, since it is smaller than the sum of its proper divisors (2618677140).

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

1380754380 is a wasteful number, since it uses less digits than its factorization.

1380754380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793578 (or 793576 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1380754380 is about 37158.5034682507. The cubic root of 1380754380 is about 1113.5391137987.

The spelling of 1380754380 in words is "one billion, three hundred eighty million, seven hundred fifty-four thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 793537 1587074 2380611 3174148 3967685 4761222 7935370 9522444 11903055 15870740 23012573 23806110 46025146 47612220 69037719 92050292 115062865 138075438 230125730 276150876 345188595 460251460 690377190 1380754380