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71682430 = 257168243
BaseRepresentation
bin1000100010111…
…00100101111110
311222212211210211
410101130211332
5121322314210
611040223034
71530201451
oct421344576
9158784724
1071682430
1137510086
122000aa7a
1311b0a551
14973d498
15645e38a
hex445c97e

71682430 has 8 divisors (see below), whose sum is σ = 129028392. Its totient is φ = 28672968.

The previous prime is 71682409. The next prime is 71682449. The reversal of 71682430 is 3428617.

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

It is a junction number, because it is equal to n+sod(n) for n = 71682392 and 71682401.

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, 3584112 + ... + 3584131.

It is an arithmetic number, because the mean of its divisors is an integer number (16128549).

Almost surely, 271682430 is an apocalyptic number.

71682430 is a deficient number, since it is larger than the sum of its proper divisors (57345962).

71682430 is a wasteful number, since it uses less digits than its factorization.

71682430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168250.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 71682430 is about 8466.5477025763. The cubic root of 71682430 is about 415.4042222024.

The spelling of 71682430 in words is "seventy-one million, six hundred eighty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 7168243 14336486 35841215 71682430