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47368940 = 2254161947
BaseRepresentation
bin1011010010110…
…0101011101100
310022010120222012
42310230223230
544111301230
64411140352
71113425603
oct264545354
9108116865
1047368940
1124813a93
1213a446b8
139a76978
146410a3a
15425a395
hex2d2caec

47368940 has 48 divisors (see below), whose sum is σ = 103680864. Its totient is φ = 18163200.

The previous prime is 47368931. The next prime is 47368969. The reversal of 47368940 is 4986374.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 49547 + ... + 50493.

It is an arithmetic number, because the mean of its divisors is an integer number (2160018).

Almost surely, 247368940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47368940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51840432).

47368940 is an abundant number, since it is smaller than the sum of its proper divisors (56311924).

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

47368940 is a wasteful number, since it uses less digits than its factorization.

47368940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 47368940 is about 6882.5097166659. The cubic root of 47368940 is about 361.8244318202.

The spelling of 47368940 in words is "forty-seven million, three hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 41 61 82 122 164 205 244 305 410 610 820 947 1220 1894 2501 3788 4735 5002 9470 10004 12505 18940 25010 38827 50020 57767 77654 115534 155308 194135 231068 288835 388270 577670 776540 1155340 2368447 4736894 9473788 11842235 23684470 47368940