Search a number
-
+
155350128 = 24318117881
BaseRepresentation
bin10010100001001…
…11010001110000
3101211022121022110
421100213101300
5304232201003
623225405320
73564311553
oct1120472160
9354277273
10155350128
117a76693a
1244039840
132625316b
14168bc69a
15d989a03
hex9427470

155350128 has 40 divisors (see below), whose sum is σ = 403560976. Its totient is φ = 51494400.

The previous prime is 155350081. The next prime is 155350141. The reversal of 155350128 is 821053551.

It is a junction number, because it is equal to n+sod(n) for n = 155350095 and 155350104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253 + ... + 17628.

Almost surely, 2155350128 is an apocalyptic number.

It is an amenable number.

155350128 is an abundant number, since it is smaller than the sum of its proper divisors (248210848).

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

155350128 is a wasteful number, since it uses less digits than its factorization.

155350128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18073 (or 18067 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 155350128 is about 12463.9531449697. The cubic root of 155350128 is about 537.5726995951.

It can be divided in two parts, 1553 and 50128, that added together give a triangular number (51681 = T321).

The spelling of 155350128 in words is "one hundred fifty-five million, three hundred fifty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 181 362 543 724 1086 1448 2172 2896 4344 8688 17881 35762 53643 71524 107286 143048 214572 286096 429144 858288 3236461 6472922 9709383 12945844 19418766 25891688 38837532 51783376 77675064 155350128