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144973205 = 5133171947
BaseRepresentation
bin10001010010000…
…01110110010101
3101002210101211222
420221001312111
5244103120310
622215140125
73410152256
oct1051016625
9332711758
10144973205
1174919573
1240674645
132405bb80
141537ab2d
15cada055
hex8a41d95

144973205 has 16 divisors (see below), whose sum is σ = 193396224. Its totient is φ = 103602240.

The previous prime is 144973189. The next prime is 144973223. The reversal of 144973205 is 502379441.

It is not a de Polignac number, because 144973205 - 24 = 144973189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33959 + ... + 37988.

It is an arithmetic number, because the mean of its divisors is an integer number (12087264).

Almost surely, 2144973205 is an apocalyptic number.

It is an amenable number.

144973205 is a deficient number, since it is larger than the sum of its proper divisors (48423019).

144973205 is a wasteful number, since it uses less digits than its factorization.

144973205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71996.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 144973205 is about 12040.4819255709. The cubic root of 144973205 is about 525.3264243622.

The spelling of 144973205 in words is "one hundred forty-four million, nine hundred seventy-three thousand, two hundred five".

Divisors: 1 5 13 31 65 155 403 2015 71947 359735 935311 2230357 4676555 11151785 28994641 144973205