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52271456 = 2523293179
BaseRepresentation
bin1100011101100…
…1100101100000
310122100122221212
43013121211200
5101340141311
65104205252
71203204626
oct307314540
9118318855
1052271456
1127562356
1215609828
13aaa2273
146d29516
1548c7c8b
hex31d9960

52271456 has 96 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 23063040.

The previous prime is 52271437. The next prime is 52271459. The reversal of 52271456 is 65417225.

It is a super-2 number, since 2×522714562 = 5464610224719872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52271459) 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, 661625 + ... + 661703.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 252271456 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 52271456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58060800).

52271456 is an abundant number, since it is smaller than the sum of its proper divisors (63850144).

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

52271456 is a wasteful number, since it uses less digits than its factorization.

52271456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 164 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 52271456 is about 7229.9001376229. The cubic root of 52271456 is about 373.8994839832.

The spelling of 52271456 in words is "fifty-two million, two hundred seventy-one thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 23 29 31 32 46 58 62 79 92 116 124 158 184 232 248 316 368 464 496 632 667 713 736 899 928 992 1264 1334 1426 1798 1817 2291 2449 2528 2668 2852 3596 3634 4582 4898 5336 5704 7192 7268 9164 9796 10672 11408 14384 14536 18328 19592 20677 21344 22816 28768 29072 36656 39184 41354 52693 56327 58144 71021 73312 78368 82708 105386 112654 142042 165416 210772 225308 284084 330832 421544 450616 568168 661664 843088 901232 1136336 1633483 1686176 1802464 2272672 3266966 6533932 13067864 26135728 52271456