Search a number
-
+
155127472758048 = 25374318892841967
BaseRepresentation
bin100011010001011001101101…
…111010001001110100100000
3202100021001010022001222020210
4203101121231322021310200
5130313102031011224143
61305532324400134120
744450406250113540
oct4321315572116440
9670231108058223
10155127472758048
114547921223063a
12154948b0907340
1368735c5057a5b
142a442d1769320
1512e034cba7033
hex8d166de89d20

155127472758048 has 192 divisors, whose sum is σ = 476457526702080. Its totient is φ = 43268454899712.

The previous prime is 155127472757993. The next prime is 155127472758113. The reversal of 155127472758048 is 840857274721551.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 155127472758048.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53163561 + ... + 56005527.

It is an arithmetic number, because the mean of its divisors is an integer number (2481549618240).

Almost surely, 2155127472758048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155127472758048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238228763351040).

155127472758048 is an abundant number, since it is smaller than the sum of its proper divisors (321330053944032).

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

155127472758048 is a wasteful number, since it uses less digits than its factorization.

155127472758048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843919 (or 2843911 counting only the distinct ones).

The product of its (nonzero) digits is 175616000, while the sum is 66.

The spelling of 155127472758048 in words is "one hundred fifty-five trillion, one hundred twenty-seven billion, four hundred seventy-two million, seven hundred fifty-eight thousand, forty-eight".