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72074496 = 283137219
BaseRepresentation
bin1000100101111…
…00010100000000
312000121202121210
410102330110000
5121422340441
611052450120
71533423504
oct422742400
9160552553
1072074496
11377586aa
1220179940
1311c16b40
149802304
1564da616
hex44bc500

72074496 has 72 divisors (see below), whose sum is σ = 206607520. Its totient is φ = 22173696.

The previous prime is 72074449. The next prime is 72074507. The reversal of 72074496 is 69447027.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6375 + ... + 13593.

Almost surely, 272074496 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 72074496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103303760).

72074496 is an abundant number, since it is smaller than the sum of its proper divisors (134533024).

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

72074496 is a wasteful number, since it uses less digits than its factorization.

72074496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251 (or 7237 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 72074496 is about 8489.6699582493. The cubic root of 72074496 is about 416.1601947140.

The spelling of 72074496 in words is "seventy-two million, seventy-four thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 256 312 384 416 624 768 832 1248 1664 2496 3328 4992 7219 9984 14438 21657 28876 43314 57752 86628 93847 115504 173256 187694 231008 281541 346512 375388 462016 563082 693024 750776 924032 1126164 1386048 1501552 1848064 2252328 2772096 3003104 4504656 5544192 6006208 9009312 12012416 18018624 24024832 36037248 72074496