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47996740 = 22511297523
BaseRepresentation
bin1011011100010…
…1111101000100
310100022111011001
42313011331010
544241343430
64432423044
71121652121
oct267057504
9110274131
1047996740
1125102730
12140a7a84
139c3664c
146535748
1543313ca
hex2dc5f44

47996740 has 48 divisors (see below), whose sum is σ = 113762880. Its totient is φ = 16849280.

The previous prime is 47996731. The next prime is 47996749. The reversal of 47996740 is 4769974.

It is an interprime number because it is at equal distance from previous prime (47996731) and next prime (47996749).

It is not an unprimeable number, because it can be changed into a prime (47996749) 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, 2619 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 247996740 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 47996740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56881440).

47996740 is an abundant number, since it is smaller than the sum of its proper divisors (65766140).

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

47996740 is a wasteful number, since it uses less digits than its factorization.

47996740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572 (or 7570 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 47996740 is about 6927.9679560460. The cubic root of 47996740 is about 363.4158908619.

The spelling of 47996740 in words is "forty-seven million, nine hundred ninety-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 11 20 22 29 44 55 58 110 116 145 220 290 319 580 638 1276 1595 3190 6380 7523 15046 30092 37615 75230 82753 150460 165506 218167 331012 413765 436334 827530 872668 1090835 1655060 2181670 2399837 4363340 4799674 9599348 11999185 23998370 47996740