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87849426 = 23719283389
BaseRepresentation
bin1010011110001…
…11100111010010
320010022012202110
411033013213102
5134442140201
612414530150
72114464530
oct517074722
9203265673
1087849426
1145652635
1225506956
131527b112
14b94b150
157aa46d6
hex53c79d2

87849426 has 64 divisors (see below), whose sum is σ = 212659200. Its totient is φ = 23633856.

The previous prime is 87849409. The next prime is 87849427. The reversal of 87849426 is 62494878.

It is not an unprimeable number, because it can be changed into a prime (87849427) 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, 225640 + ... + 226028.

It is an arithmetic number, because the mean of its divisors is an integer number (3322800).

Almost surely, 287849426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87849426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106329600).

87849426 is an abundant number, since it is smaller than the sum of its proper divisors (124809774).

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

87849426 is a wasteful number, since it uses less digits than its factorization.

87849426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its digits is 774144, while the sum is 48.

The square root of 87849426 is about 9372.8024624442. The cubic root of 87849426 is about 444.5421811767.

The spelling of 87849426 in words is "eighty-seven million, eight hundred forty-nine thousand, four hundred twenty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 283 389 399 566 778 798 849 1167 1698 1981 2334 2723 3962 5377 5446 5943 7391 8169 10754 11886 14782 16131 16338 22173 32262 37639 44346 51737 75278 103474 110087 112917 155211 220174 225834 310422 330261 660522 770609 1541218 2091653 2311827 4183306 4623654 6274959 12549918 14641571 29283142 43924713 87849426