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52223457 = 311131943149
BaseRepresentation
bin1100011100110…
…1110111100001
310122021020010010
43013031313201
5101332122312
65103155133
71202614656
oct307156741
9118236103
1052223457
112752a290
12155a5aa9
13aa86470
146d15c2d
1548b893c
hex31cdde1

52223457 has 64 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 26853120.

The previous prime is 52223449. The next prime is 52223459. The reversal of 52223457 is 75432225.

It is not a de Polignac number, because 52223457 - 23 = 52223449 is a prime.

It is a super-2 number, since 2×522234572 = 5454578922061698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52223459) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350419 + ... + 350567.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 252223457 is an apocalyptic number.

52223457 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52223457 is a deficient number, since it is larger than the sum of its proper divisors (36480543).

52223457 is a wasteful number, since it uses less digits than its factorization.

52223457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 16800, while the sum is 30.

The square root of 52223457 is about 7226.5798964655. The cubic root of 52223457 is about 373.7850027806.

The spelling of 52223457 in words is "fifty-two million, two hundred twenty-three thousand, four hundred fifty-seven".

Divisors: 1 3 11 13 19 33 39 43 57 129 143 149 209 247 429 447 473 559 627 741 817 1419 1639 1677 1937 2451 2717 2831 4917 5811 6149 6407 8151 8493 8987 10621 18447 19221 21307 26961 31141 31863 36803 63921 70477 83291 93423 110409 116831 121733 211431 249873 350493 365199 404833 916201 1214499 1339063 1582529 2748603 4017189 4747587 17407819 52223457