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173868434 = 2619140443
BaseRepresentation
bin10100101110100…
…00010110010010
3110010011102122122
422113100112102
5324002242214
625130334242
74210600025
oct1227202622
9403142578
10173868434
118a164a23
124a28a382
132a03803c
141913d1bc
15103e688e
hexa5d0592

173868434 has 8 divisors (see below), whose sum is σ = 261225840. Its totient is φ = 86793156.

The previous prime is 173868397. The next prime is 173868509. The reversal of 173868434 is 434868371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1738684342 = 60460464683224712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68984 + ... + 71459.

It is an arithmetic number, because the mean of its divisors is an integer number (32653230).

Almost surely, 2173868434 is an apocalyptic number.

173868434 is a deficient number, since it is larger than the sum of its proper divisors (87357406).

173868434 is a wasteful number, since it uses less digits than its factorization.

173868434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141064.

The product of its digits is 387072, while the sum is 44.

The square root of 173868434 is about 13185.9180188563. The cubic root of 173868434 is about 558.1362723490.

The spelling of 173868434 in words is "one hundred seventy-three million, eight hundred sixty-eight thousand, four hundred thirty-four".

Divisors: 1 2 619 1238 140443 280886 86934217 173868434