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172248130 = 2571242603
BaseRepresentation
bin10100100010001…
…00110001000010
3110000010010000101
422101010301002
5323043420010
625031513014
74161041065
oct1221046102
9400103011
10172248130
118925862a
124982876a
13298bb692
1418c3a8dc
15101c673a
hexa444c42

172248130 has 16 divisors (see below), whose sum is σ = 314414784. Its totient is φ = 67928560.

The previous prime is 172248119. The next prime is 172248133. The reversal of 172248130 is 31842271.

It is not an unprimeable number, because it can be changed into a prime (172248133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120592 + ... + 122011.

It is an arithmetic number, because the mean of its divisors is an integer number (19650924).

Almost surely, 2172248130 is an apocalyptic number.

172248130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172248130 is a deficient number, since it is larger than the sum of its proper divisors (142166654).

172248130 is a wasteful number, since it uses less digits than its factorization.

172248130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242681.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 172248130 is about 13124.3335068871. Note that the first 3 decimals coincide. The cubic root of 172248130 is about 556.3970754465.

The spelling of 172248130 in words is "one hundred seventy-two million, two hundred forty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 242603 485206 1213015 2426030 17224813 34449626 86124065 172248130