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289501742 = 2205370507
BaseRepresentation
bin10001010000010…
…111001000101110
3202011202012201202
4101100113020232
51043103023432
644421005502
710113503255
oct2120271056
9664665652
10289501742
11139463a42
1280b53892
1347c9350a
142a63d79c
151a638462
hex1141722e

289501742 has 8 divisors (see below), whose sum is σ = 434470296. Its totient is φ = 144678312.

The previous prime is 289501739. The next prime is 289501769. The reversal of 289501742 is 247105982.

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

It is a super-2 number, since 2×2895017422 = 167622517242069128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 289501696 and 289501705.

It is a congruent number.

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, 31148 + ... + 39359.

It is an arithmetic number, because the mean of its divisors is an integer number (54308787).

Almost surely, 2289501742 is an apocalyptic number.

289501742 is a deficient number, since it is larger than the sum of its proper divisors (144968554).

289501742 is a wasteful number, since it uses less digits than its factorization.

289501742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72562.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 289501742 is about 17014.7507181269. The cubic root of 289501742 is about 661.5312944454.

The spelling of 289501742 in words is "two hundred eighty-nine million, five hundred one thousand, seven hundred forty-two".

Divisors: 1 2 2053 4106 70507 141014 144750871 289501742