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158270240 = 2551915179
BaseRepresentation
bin10010110111100…
…00001100100000
3102000210221221202
421123300030200
5311004121430
623412140332
73631163162
oct1133601440
9360727852
10158270240
1181380857
12450076a8
1326a3633b
141703c932
15dd64d45
hex96f0320

158270240 has 48 divisors (see below), whose sum is σ = 375943680. Its totient is φ = 62964480.

The previous prime is 158270239. The next prime is 158270249. The reversal of 158270240 is 42072851.

It is not an unprimeable number, because it can be changed into a prime (158270249) by changing a digit.

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, 27971 + ... + 33149.

It is an arithmetic number, because the mean of its divisors is an integer number (7832160).

Almost surely, 2158270240 is an apocalyptic number.

158270240 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 158270240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187971840).

158270240 is an abundant number, since it is smaller than the sum of its proper divisors (217673440).

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

158270240 is a wasteful number, since it uses less digits than its factorization.

158270240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 158270240 is about 12580.5500674653. The cubic root of 158270240 is about 540.9200593009.

The spelling of 158270240 in words is "one hundred fifty-eight million, two hundred seventy thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 191 382 764 955 1528 1910 3056 3820 5179 6112 7640 10358 15280 20716 25895 30560 41432 51790 82864 103580 165728 207160 414320 828640 989189 1978378 3956756 4945945 7913512 9891890 15827024 19783780 31654048 39567560 79135120 158270240