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150905638 = 21319305477
BaseRepresentation
bin10001111111010…
…10001100100110
3101111221210121201
420333222030212
5302112440023
622550233114
73511451062
oct1077521446
9344853551
10150905638
1178200704
124265579a
13253581a0
1416082aa2
15d3acbad
hex8fea326

150905638 has 16 divisors (see below), whose sum is σ = 256601520. Its totient is φ = 65982816.

The previous prime is 150905627. The next prime is 150905653. The reversal of 150905638 is 836509051.

It is a junction number, because it is equal to n+sod(n) for n = 150905597 and 150905606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152245 + ... + 153232.

It is an arithmetic number, because the mean of its divisors is an integer number (16037595).

Almost surely, 2150905638 is an apocalyptic number.

150905638 is a deficient number, since it is larger than the sum of its proper divisors (105695882).

150905638 is a wasteful number, since it uses less digits than its factorization.

150905638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305511.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 150905638 is about 12284.3655920849. The cubic root of 150905638 is about 532.3964552871.

The spelling of 150905638 in words is "one hundred fifty million, nine hundred five thousand, six hundred thirty-eight".

Divisors: 1 2 13 19 26 38 247 494 305477 610954 3971201 5804063 7942402 11608126 75452819 150905638