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61487382 = 23111949033
BaseRepresentation
bin1110101010001…
…1100100010110
311021200212211110
43222203210112
5111220044012
610033515450
71344430335
oct352434426
9137625743
1061487382
1131787420
1218712b86
13c97ac88
148247d1c
1555e873c
hex3aa3916

61487382 has 32 divisors (see below), whose sum is σ = 141217920. Its totient is φ = 17651520.

The previous prime is 61487333. The next prime is 61487399. The reversal of 61487382 is 28378416.

61487382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61487382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23263 + ... + 25770.

It is an arithmetic number, because the mean of its divisors is an integer number (4413060).

Almost surely, 261487382 is an apocalyptic number.

61487382 is an abundant number, since it is smaller than the sum of its proper divisors (79730538).

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

61487382 is a wasteful number, since it uses less digits than its factorization.

61487382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49068.

The product of its digits is 64512, while the sum is 39.

The square root of 61487382 is about 7841.3890351136. The cubic root of 61487382 is about 394.6953416450.

It can be divided in two parts, 6148 and 7382, that added together give a triangular number (13530 = T164).

The spelling of 61487382 in words is "sixty-one million, four hundred eighty-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 11 19 22 33 38 57 66 114 209 418 627 1254 49033 98066 147099 294198 539363 931627 1078726 1618089 1863254 2794881 3236178 5589762 10247897 20495794 30743691 61487382