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155130664457706 = 23711513209024543
BaseRepresentation
bin100011010001011100101100…
…001001100001010111101010
3202100021100100201211010002020
4203101130230021201113222
5130313130100100121311
61305534013213245310
744450551324113420
oct4321345411412752
9670240321733066
10155130664457706
114547a5aa924853
1215495441793836
1368739b337b532
142a445155d3110
1512e0487eb5c06
hex8d172c2615ea

155130664457706 has 32 divisors (see below), whose sum is σ = 354892442370048. Its totient is φ = 44284538679600.

The previous prime is 155130664457701. The next prime is 155130664457767. The reversal of 155130664457706 is 607754466031551.

It is a super-3 number, since 3×1551306644577063 (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155130664457706.

It is not an unprimeable number, because it can be changed into a prime (155130664457701) 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, 1604463930 + ... + 1604560613.

It is an arithmetic number, because the mean of its divisors is an integer number (11090388824064).

Almost surely, 2155130664457706 is an apocalyptic number.

155130664457706 is an abundant number, since it is smaller than the sum of its proper divisors (199761777912342).

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

155130664457706 is a wasteful number, since it uses less digits than its factorization.

155130664457706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209025706.

The product of its (nonzero) digits is 63504000, while the sum is 60.

The spelling of 155130664457706 in words is "one hundred fifty-five trillion, one hundred thirty billion, six hundred sixty-four million, four hundred fifty-seven thousand, seven hundred six".

Divisors: 1 2 3 6 7 14 21 42 1151 2302 3453 6906 8057 16114 24171 48342 3209024543 6418049086 9627073629 19254147258 22463171801 44926343602 67389515403 134779030806 3693587248993 7387174497986 11080761746979 22161523493958 25855110742951 51710221485902 77565332228853 155130664457706