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53023194 = 2337229691
BaseRepresentation
bin1100101001000…
…1000111011010
310200202212011000
43022101013122
5102033220234
65132245430
71212455400
oct312210732
9120685130
1053023194
1127a26124
1215910876
13aca6493
147083470
1549c5899
hex32911da

53023194 has 96 divisors (see below), whose sum is σ = 141998400. Its totient is φ = 14605920.

The previous prime is 53023189. The next prime is 53023249. The reversal of 53023194 is 49132035.

It is a super-2 number, since 2×530231942 = 5622918203923272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76389 + ... + 77079.

It is an arithmetic number, because the mean of its divisors is an integer number (1479150).

Almost surely, 253023194 is an apocalyptic number.

53023194 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53023194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70999200).

53023194 is an abundant number, since it is smaller than the sum of its proper divisors (88975206).

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

53023194 is a wasteful number, since it uses less digits than its factorization.

53023194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 53023194 is about 7281.7026854988. The cubic root of 53023194 is about 375.6833619541.

The spelling of 53023194 in words is "fifty-three million, twenty-three thousand, one hundred ninety-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 29 42 49 54 58 63 87 98 126 147 174 189 203 261 294 378 406 441 522 609 691 783 882 1218 1323 1382 1421 1566 1827 2073 2646 2842 3654 4146 4263 4837 5481 6219 8526 9674 10962 12438 12789 14511 18657 20039 25578 29022 33859 37314 38367 40078 43533 60117 67718 76734 87066 101577 120234 130599 140273 180351 203154 261198 280546 304731 360702 420819 541053 609462 841638 914193 981911 1082106 1262457 1828386 1963822 2524914 2945733 3787371 5891466 7574742 8837199 17674398 26511597 53023194