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143900934 = 2347510287
BaseRepresentation
bin10001001001111…
…00000100000110
3101000202220222020
420210330010012
5243314312214
622140144010
73365065152
oct1044740406
9330686866
10143900934
11742569a1
1240238006
1323a74aa8
141517c062
15c9774a9
hex893c106

143900934 has 16 divisors (see below), whose sum is σ = 293925888. Its totient is φ = 46946312.

The previous prime is 143900923. The next prime is 143900947. The reversal of 143900934 is 439009341.

It is a junction number, because it is equal to n+sod(n) for n = 143900895 and 143900904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254862 + ... + 255425.

It is an arithmetic number, because the mean of its divisors is an integer number (18370368).

Almost surely, 2143900934 is an apocalyptic number.

143900934 is an abundant number, since it is smaller than the sum of its proper divisors (150024954).

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

143900934 is a wasteful number, since it uses less digits than its factorization.

143900934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510339.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 143900934 is about 11995.8715398257. The cubic root of 143900934 is about 524.0280538755.

The spelling of 143900934 in words is "one hundred forty-three million, nine hundred thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 47 94 141 282 510287 1020574 1530861 3061722 23983489 47966978 71950467 143900934