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73223325 = 3352715497
BaseRepresentation
bin1000101110101…
…00110010011101
312002210010112000
410113110302131
5122221121300
611133232513
71546250040
oct427246235
9162703460
1073223325
113837284a
1220632739
1312229a16
149a20c57
156665c00
hex45d4c9d

73223325 has 48 divisors (see below), whose sum is σ = 153740160. Its totient is φ = 33471360.

The previous prime is 73223323. The next prime is 73223377. The reversal of 73223325 is 52332237.

73223325 is a `hidden beast` number, since 7 + 322 + 332 + 5 = 666.

It is not a de Polignac number, because 73223325 - 21 = 73223323 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73223323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3024 + ... + 12473.

It is an arithmetic number, because the mean of its divisors is an integer number (3202920).

Almost surely, 273223325 is an apocalyptic number.

73223325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73223325 is an abundant number, since it is smaller than the sum of its proper divisors (80516835).

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

73223325 is a wasteful number, since it uses less digits than its factorization.

73223325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15523 (or 15512 counting only the distinct ones).

The product of its digits is 7560, while the sum is 27.

The square root of 73223325 is about 8557.0628722711. The cubic root of 73223325 is about 418.3596734084.

The spelling of 73223325 in words is "seventy-three million, two hundred twenty-three thousand, three hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 35 45 63 75 105 135 175 189 225 315 525 675 945 1575 4725 15497 46491 77485 108479 139473 232455 325437 387425 418419 542395 697365 976311 1162275 1627185 2092095 2711975 2928933 3486825 4881555 8135925 10460475 14644665 24407775 73223325