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529997472 = 25333759281
BaseRepresentation
bin11111100101110…
…001111010100000
31100221021122212000
4133211301322200
52041134404342
6124331404000
716063622064
oct3745617240
91327248760
10529997472
11252195a44
121295b3600
1385a58b94
1450563aa4
15317e144c
hex1f971ea0

529997472 has 192 divisors, whose sum is σ = 1620259200. Its totient is φ = 168376320.

The previous prime is 529997471. The next prime is 529997473. The reversal of 529997472 is 274799925.

It is an interprime number because it is at equal distance from previous prime (529997471) and next prime (529997473).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (529997471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885972 + ... + 1886252.

It is an arithmetic number, because the mean of its divisors is an integer number (8438850).

Almost surely, 2529997472 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 529997472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810129600).

529997472 is an abundant number, since it is smaller than the sum of its proper divisors (1090261728).

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

529997472 is a wasteful number, since it uses less digits than its factorization.

529997472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 382 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 529997472 is about 23021.6739617257. The cubic root of 529997472 is about 809.2659467706.

It can be divided in two parts, 529 and 997472, that added together give a square (998001 = 9992).

The spelling of 529997472 in words is "five hundred twenty-nine million, nine hundred ninety-seven thousand, four hundred seventy-two".