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154124356212 = 22324281232117
BaseRepresentation
bin1000111110001010000…
…1110000101001110100
3112201211012011111222100
42033202201300221310
510011121313344322
6154445335502100
714064226261251
oct2174241605164
9481735144870
10154124356212
115a4001aa002
1225a53b27930
13116c2b91818
147661436428
154020c1adac
hex23e2870a74

154124356212 has 18 divisors (see below), whose sum is σ = 389592122738. Its totient is φ = 51374785392.

The previous prime is 154124356151. The next prime is 154124356229. The reversal of 154124356212 is 212653421451.

154124356212 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 2 + 435 + 6 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 97696254096 + 56428102116 = 312564^2 + 237546^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4281232117 = 154124356212 / (1 + 5 + 4 + 1 + 2 + 4 + 3 + 5 + 6 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2140616023 + ... + 2140616094.

Almost surely, 2154124356212 is an apocalyptic number.

154124356212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154124356212 is an abundant number, since it is smaller than the sum of its proper divisors (235467766526).

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

154124356212 is a wasteful number, since it uses less digits than its factorization.

154124356212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281232127 (or 4281232122 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 154124356212 its reverse (212653421451), we get a palindrome (366777777663).

The spelling of 154124356212 in words is "one hundred fifty-four billion, one hundred twenty-four million, three hundred fifty-six thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 4281232117 8562464234 12843696351 17124928468 25687392702 38531089053 51374785404 77062178106 154124356212