Search a number
-
+
47075742 = 234741513
BaseRepresentation
bin1011001110010…
…1000110011110
310021120200210000
42303211012132
544022410432
64400555130
71111065030
oct263450636
9107520700
1047075742
112463377a
1213922aa6
1399a338c
146375c50
1541ed57c
hex2ce519e

47075742 has 40 divisors (see below), whose sum is σ = 120556656. Its totient is φ = 13449888.

The previous prime is 47075731. The next prime is 47075761. The reversal of 47075742 is 24757074.

It is a happy number.

It is a super-2 number, since 2×470757422 = 4432250969701128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47075697 and 47075706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19623 + ... + 21890.

Almost surely, 247075742 is an apocalyptic number.

47075742 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47075742 is an abundant number, since it is smaller than the sum of its proper divisors (73480914).

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

47075742 is a wasteful number, since it uses less digits than its factorization.

47075742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41534 (or 41525 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 47075742 is about 6861.1764297386. The cubic root of 47075742 is about 361.0763619177.

The spelling of 47075742 in words is "forty-seven million, seventy-five thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 41513 83026 124539 249078 290591 373617 581182 747234 871773 1120851 1743546 2241702 2615319 3362553 5230638 6725106 7845957 15691914 23537871 47075742