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552620172 = 22313232947113
BaseRepresentation
bin100000111100000…
…101000010001100
31102111212000100210
4200330011002030
52112432321142
6130500322420
716460123346
oct4074050214
91374760323
10552620172
11263a37795
121350a3410
138a649cb0
1453572296
15337ae49c
hex20f0508c

552620172 has 192 divisors, whose sum is σ = 1544417280. Its totient is φ = 152334336.

The previous prime is 552620171. The next prime is 552620179. The reversal of 552620172 is 271026255.

It is not an unprimeable number, because it can be changed into a prime (552620171) 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, 4890388 + ... + 4890500.

It is an arithmetic number, because the mean of its divisors is an integer number (8043840).

Almost surely, 2552620172 is an apocalyptic number.

552620172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552620172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772208640).

552620172 is an abundant number, since it is smaller than the sum of its proper divisors (991797108).

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

552620172 is a wasteful number, since it uses less digits than its factorization.

552620172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 552620172 is about 23507.8746806256. The cubic root of 552620172 is about 820.6202782512.

The spelling of 552620172 in words is "five hundred fifty-two million, six hundred twenty thousand, one hundred seventy-two".