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142473514 = 21989103409
BaseRepresentation
bin10000111110111…
…11100100101010
3100221002101220211
420133133210222
5242433123024
622045411334
73350001451
oct1037374452
9327071824
10142473514
1173471507
123b869b4a
1323695171
1414cc9b98
15c794594
hex87df92a

142473514 has 32 divisors (see below), whose sum is σ = 230256000. Its totient is φ = 65919744.

The previous prime is 142473511. The next prime is 142473517. The reversal of 142473514 is 415374241.

142473514 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142473511) and next prime (142473517).

It is not an unprimeable number, because it can be changed into a prime (142473511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348142 + ... + 348550.

It is an arithmetic number, because the mean of its divisors is an integer number (7195500).

Almost surely, 2142473514 is an apocalyptic number.

142473514 is a deficient number, since it is larger than the sum of its proper divisors (87782486).

142473514 is a wasteful number, since it uses less digits than its factorization.

142473514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 13440, while the sum is 31.

The square root of 142473514 is about 11936.2269582980. The cubic root of 142473514 is about 522.2896006586.

The spelling of 142473514 in words is "one hundred forty-two million, four hundred seventy-three thousand, five hundred fourteen".

Divisors: 1 2 19 38 89 103 178 206 409 818 1691 1957 3382 3914 7771 9167 15542 18334 36401 42127 72802 84254 174173 348346 691619 800413 1383238 1600826 3749303 7498606 71236757 142473514