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83415128140477 = 7611392880748787
BaseRepresentation
bin10010111101110110011001…
…000101001110101010111101
3101221100102000200221211110001
4102331312121011032222331
541413133140300443402
6453224214132514301
723366354431262320
oct2275663105165275
9357312020854401
1083415128140477
1124640180231051
1294324b177b991
133771022263763
141685456cac7b7
15999c43c4d187
hex4bdd9914eabd

83415128140477 has 32 divisors (see below), whose sum is σ = 97596857845760. Its totient is φ = 69816770354880.

The previous prime is 83415128140441. The next prime is 83415128140493. The reversal of 83415128140477 is 77404182151438.

It is a cyclic number.

It is not a de Polignac number, because 83415128140477 - 27 = 83415128140349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83415128140417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1709757478 + ... + 1709806264.

It is an arithmetic number, because the mean of its divisors is an integer number (3049901807680).

Almost surely, 283415128140477 is an apocalyptic number.

It is an amenable number.

83415128140477 is a deficient number, since it is larger than the sum of its proper divisors (14181729705283).

83415128140477 is a wasteful number, since it uses less digits than its factorization.

83415128140477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77801.

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 83415128140477 in words is "eighty-three trillion, four hundred fifteen billion, one hundred twenty-eight million, one hundred forty thousand, four hundred seventy-seven".

Divisors: 1 7 61 139 427 973 8479 28807 48787 59353 201649 341509 1757227 2976007 4004173 6781393 12300589 20832049 28029211 47469751 244254553 413664973 1405407109 1709781871 2895654811 9837849763 85729833649 195351588151 600108835543 1367461117057 11916446877211 83415128140477