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173930472 = 23322415701
BaseRepresentation
bin10100101110111…
…11011111101000
3110010021120202100
422113133133220
5324011233342
625131533400
74211245632
oct1227373750
9403246670
10173930472
118a1a75a1
124a2ba260
132a05a351
1419157a52
1510409e4c
hexa5df7e8

173930472 has 24 divisors (see below), whose sum is σ = 471061890. Its totient is φ = 57976800.

The previous prime is 173930467. The next prime is 173930473. The reversal of 173930472 is 274039371.

It can be written as a sum of positive squares in only one way, i.e., 119377476 + 54552996 = 10926^2 + 7386^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (173930473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1207779 + ... + 1207922.

Almost surely, 2173930472 is an apocalyptic number.

173930472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173930472 is an abundant number, since it is smaller than the sum of its proper divisors (297131418).

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

173930472 is a wasteful number, since it uses less digits than its factorization.

173930472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415713 (or 2415706 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 173930472 is about 13188.2702429090. The cubic root of 173930472 is about 558.2026473273.

The spelling of 173930472 in words is "one hundred seventy-three million, nine hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2415701 4831402 7247103 9662804 14494206 19325608 21741309 28988412 43482618 57976824 86965236 173930472