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47937942 = 23213349587
BaseRepresentation
bin1011011011011…
…1100110010110
310100012111111100
42312313212112
544233003232
64431250530
71121315523
oct266674626
9110174440
1047937942
1125072538
1214079a46
139c15960
14651c14a
15431dc7c
hex2db7996

47937942 has 48 divisors (see below), whose sum is σ = 112366800. Its totient is φ = 14682816.

The previous prime is 47937941. The next prime is 47937949. The reversal of 47937942 is 24973974.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47937941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81373 + ... + 81959.

It is an arithmetic number, because the mean of its divisors is an integer number (2340975).

Almost surely, 247937942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47937942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56183400).

47937942 is an abundant number, since it is smaller than the sum of its proper divisors (64428858).

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

47937942 is a wasteful number, since it uses less digits than its factorization.

47937942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 954 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 47937942 is about 6923.7231313795. The cubic root of 47937942 is about 363.2674303685.

The spelling of 47937942 in words is "forty-seven million, nine hundred thirty-seven thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 349 587 698 1047 1174 1761 2094 3141 3522 4537 5283 6282 7631 9074 10566 13611 15262 22893 27222 40833 45786 68679 81666 137358 204863 409726 614589 1229178 1843767 2663219 3687534 5326438 7989657 15979314 23968971 47937942