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82623407 = 29103139199
BaseRepresentation
bin1001110110010…
…11101110101111
312202110201000012
410323023232233
5132122422112
612110523435
72022200366
oct473135657
9182421005
1082623407
1142703209
122380657b
131416b4b9
14ad8a7dd
1573c1022
hex4ecbbaf

82623407 has 16 divisors (see below), whose sum is σ = 87360000. Its totient is φ = 78037344.

The previous prime is 82623397. The next prime is 82623413. The reversal of 82623407 is 70432628.

It is a cyclic number.

It is not a de Polignac number, because 82623407 - 24 = 82623391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82623007) 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, 415094 + ... + 415292.

It is an arithmetic number, because the mean of its divisors is an integer number (5460000).

Almost surely, 282623407 is an apocalyptic number.

82623407 is a deficient number, since it is larger than the sum of its proper divisors (4736593).

82623407 is a wasteful number, since it uses less digits than its factorization.

82623407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 82623407 is about 9089.7418555204. The cubic root of 82623407 is about 435.5463378060.

The spelling of 82623407 in words is "eighty-two million, six hundred twenty-three thousand, four hundred seven".

Divisors: 1 29 103 139 199 2987 4031 5771 14317 20497 27661 415193 594413 802169 2849083 82623407