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87440101734 = 23432179155537
BaseRepresentation
bin101000101101111010…
…1100001000101100110
322100200211222101212110
41101123311201011212
52413034131223414
6104100332501450
76213563413206
oct1213365410546
9270624871773
1087440101734
11340a0726697
1214b4361a886
13832668028b
144336d38406
15241b76d459
hex145bd61166

87440101734 has 32 divisors (see below), whose sum is σ = 179030459520. Its totient is φ = 28455622272.

The previous prime is 87440101699. The next prime is 87440101787. The reversal of 87440101734 is 43710104478.

It is a junction number, because it is equal to n+sod(n) for n = 87440101692 and 87440101701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484414 + ... + 639950.

It is an arithmetic number, because the mean of its divisors is an integer number (5594701860).

Almost surely, 287440101734 is an apocalyptic number.

87440101734 is an abundant number, since it is smaller than the sum of its proper divisors (91590357786).

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

87440101734 is a wasteful number, since it uses less digits than its factorization.

87440101734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157764.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 87440101734 in words is "eighty-seven billion, four hundred forty million, one hundred one thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 43 86 129 258 2179 4358 6537 13074 93697 155537 187394 281091 311074 466611 562182 933222 6688091 13376182 20064273 40128546 338915123 677830246 1016745369 2033490738 14573350289 29146700578 43720050867 87440101734