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47394120 = 23352913619
BaseRepresentation
bin1011010011001…
…0110101001000
310022011212111210
42310302311020
544113102440
64411453120
71113562164
oct264626510
9108155453
1047394120
11248309a4
1213a571a0
139a85277
146419ca4
154262a80
hex2d32d48

47394120 has 64 divisors (see below), whose sum is σ = 147096000. Its totient is φ = 12201728.

The previous prime is 47394059. The next prime is 47394143. The reversal of 47394120 is 2149374.

It is a happy number.

It is a super-2 number, since 2×473941202 = 4492405221148800, which contains 22 as substring.

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

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, 3330 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (2298375).

Almost surely, 247394120 is an apocalyptic number.

47394120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47394120 is an abundant number, since it is smaller than the sum of its proper divisors (99701880).

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

47394120 is a wasteful number, since it uses less digits than its factorization.

47394120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662 (or 13658 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 47394120 is about 6884.3387482023. The cubic root of 47394120 is about 361.8885323703. Note that the first 3 decimals are identical.

The spelling of 47394120 in words is "forty-seven million, three hundred ninety-four thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 58 60 87 116 120 145 174 232 290 348 435 580 696 870 1160 1740 3480 13619 27238 40857 54476 68095 81714 108952 136190 163428 204285 272380 326856 394951 408570 544760 789902 817140 1184853 1579804 1634280 1974755 2369706 3159608 3949510 4739412 5924265 7899020 9478824 11848530 15798040 23697060 47394120