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155230801735680 = 2123251131279669
BaseRepresentation
bin100011010010111001111100…
…110010111011000000000000
3202100121220211110202220022100
4203102321330302323000000
5130321300140221020210
61310052013522510400
744461024655664306
oct4322717462730000
9670556743686270
10155230801735680
11455090167a2920
12154b0929505400
136880281454338
142a492d498a276
1512e2d992ba5c0
hex8d2e7ccbb000

155230801735680 has 936 divisors, whose sum is σ = 606536359612560. Its totient is φ = 36417326284800.

The previous prime is 155230801735657. The next prime is 155230801735697. The reversal of 155230801735680 is 86537108032551.

155230801735680 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 3 + 0 + 8 + 0 + 1 + 73 + 568 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1948406886 + ... + 1948486554.

It is an arithmetic number, because the mean of its divisors is an integer number (648008931210).

Almost surely, 2155230801735680 is an apocalyptic number.

155230801735680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155230801735680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303268179806280).

155230801735680 is an abundant number, since it is smaller than the sum of its proper divisors (451305557876880).

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

155230801735680 is a wasteful number, since it uses less digits than its factorization.

155230801735680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79777 (or 79721 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 155230801735680 in words is "one hundred fifty-five trillion, two hundred thirty billion, eight hundred one million, seven hundred thirty-five thousand, six hundred eighty".