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150878420 = 22571197973
BaseRepresentation
bin10001111111000…
…11100011010100
3101111220102021122
420333203203110
5302111102140
622545503112
73511305530
oct1077434324
9344812248
10150878420
1178192210
1242641a98
1325348994
1416076bc0
15d3a4ab5
hex8fe38d4

150878420 has 48 divisors (see below), whose sum is σ = 395031168. Its totient is φ = 47026560.

The previous prime is 150878389. The next prime is 150878423. The reversal of 150878420 is 24878051.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150878423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47447 + ... + 50526.

It is an arithmetic number, because the mean of its divisors is an integer number (8229816).

Almost surely, 2150878420 is an apocalyptic number.

150878420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150878420 is an abundant number, since it is smaller than the sum of its proper divisors (244152748).

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

150878420 is a wasteful number, since it uses less digits than its factorization.

150878420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98000 (or 97998 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 150878420 is about 12283.2577112100. The cubic root of 150878420 is about 532.3644449125.

The spelling of 150878420 in words is "one hundred fifty million, eight hundred seventy-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 97973 195946 391892 489865 685811 979730 1077703 1371622 1959460 2155406 2743244 3429055 4310812 5388515 6858110 7543921 10777030 13716220 15087842 21554060 30175684 37719605 75439210 150878420