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154245161950 = 25211280445749
BaseRepresentation
bin1000111110100110111…
…0100110001111011110
3112202010121111002021221
42033221232212033132
510011343230140300
6154505333043554
714100224146465
oct2175156461736
9482117432257
10154245161950
115a462411160
1225a884865ba
1311711c0b3c9
1476734c19dc
15402b63031a
hex23e9ba63de

154245161950 has 24 divisors (see below), whose sum is σ = 312977457000. Its totient is φ = 56089149600.

The previous prime is 154245161909. The next prime is 154245161953. The reversal of 154245161950 is 59161542451.

It is a junction number, because it is equal to n+sod(n) for n = 154245161897 and 154245161906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154245161953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140222325 + ... + 140223424.

It is an arithmetic number, because the mean of its divisors is an integer number (13040727375).

Almost surely, 2154245161950 is an apocalyptic number.

154245161950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154245161950 is an abundant number, since it is smaller than the sum of its proper divisors (158732295050).

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

154245161950 is a wasteful number, since it uses less digits than its factorization.

154245161950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280445772 (or 280445767 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 154245161950 in words is "one hundred fifty-four billion, two hundred forty-five million, one hundred sixty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 280445749 560891498 1402228745 2804457490 3084903239 6169806478 7011143725 14022287450 15424516195 30849032390 77122580975 154245161950