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1385474080 = 25563113723
BaseRepresentation
bin101001010010100…
…1010100000100000
310120120000101010211
41102211022200200
510314140132310
6345251303504
746222223014
oct12245124040
93516011124
101385474080
11651078201
12327baab94
13191063b63
14d2010544
1581975c8a
hex5294a820

1385474080 has 48 divisors (see below), whose sum is σ = 3278608704. Its totient is φ = 553271040.

The previous prime is 1385474033. The next prime is 1385474099. The reversal of 1385474080 is 804745831.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94099 + ... + 107821.

It is an arithmetic number, because the mean of its divisors is an integer number (68304348).

Almost surely, 21385474080 is an apocalyptic number.

1385474080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385474080 is an abundant number, since it is smaller than the sum of its proper divisors (1893134624).

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

1385474080 is a wasteful number, since it uses less digits than its factorization.

1385474080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14369 (or 14361 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 1385474080 is about 37221.9569609122. The cubic root of 1385474080 is about 1114.8064388140.

The spelling of 1385474080 in words is "one billion, three hundred eighty-five million, four hundred seventy-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 631 1262 2524 3155 5048 6310 10096 12620 13723 20192 25240 27446 50480 54892 68615 100960 109784 137230 219568 274460 439136 548920 1097840 2195680 8659213 17318426 34636852 43296065 69273704 86592130 138547408 173184260 277094816 346368520 692737040 1385474080