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151564840 = 2357311047
BaseRepresentation
bin10010000100010…
…11001000101000
3101120012021212121
421002023020220
5302300033330
623012321024
73520165000
oct1102131050
9346167777
10151564840
11786109a9
1242913174
132552924b
14161b5000
15d48d17a
hex908b228

151564840 has 64 divisors (see below), whose sum is σ = 397728000. Its totient is φ = 51960384.

The previous prime is 151564837. The next prime is 151564841. The reversal of 151564840 is 48465151.

It is a junction number, because it is equal to n+sod(n) for n = 151564796 and 151564805.

It is not an unprimeable number, because it can be changed into a prime (151564841) 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, 8197 + ... + 19243.

It is an arithmetic number, because the mean of its divisors is an integer number (6214500).

Almost surely, 2151564840 is an apocalyptic number.

151564840 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 151564840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198864000).

151564840 is an abundant number, since it is smaller than the sum of its proper divisors (246163160).

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

151564840 is a wasteful number, since it uses less digits than its factorization.

151564840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079 (or 11061 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 151564840 is about 12311.1672882794. The cubic root of 151564840 is about 533.1705527528.

The spelling of 151564840 in words is "one hundred fifty-one million, five hundred sixty-four thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 392 490 686 980 1372 1715 1960 2744 3430 6860 11047 13720 22094 44188 55235 77329 88376 110470 154658 220940 309316 386645 441880 541303 618632 773290 1082606 1546580 2165212 2706515 3093160 3789121 4330424 5413030 7578242 10826060 15156484 18945605 21652120 30312968 37891210 75782420 151564840