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154130020 = 22511700591
BaseRepresentation
bin10010010111111…
…01011001100100
3101202000121122021
421023331121210
5303424130040
623143312524
73551040442
oct1113753144
9352017567
10154130020
117a003190
124374b744
1325c169c5
1416681b92
15d7e824a
hex92fd664

154130020 has 24 divisors (see below), whose sum is σ = 353098368. Its totient is φ = 56047200.

The previous prime is 154130003. The next prime is 154130021. The reversal of 154130020 is 20031451.

154130020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 154129976 and 154130003.

It is not an unprimeable number, because it can be changed into a prime (154130021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350076 + ... + 350515.

It is an arithmetic number, because the mean of its divisors is an integer number (14712432).

Almost surely, 2154130020 is an apocalyptic number.

154130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154130020 is an abundant number, since it is smaller than the sum of its proper divisors (198968348).

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

154130020 is a wasteful number, since it uses less digits than its factorization.

154130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700611 (or 700609 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 154130020 is about 12414.9111958161. The cubic root of 154130020 is about 536.1616474286.

Adding to 154130020 its reverse (20031451), we get a palindrome (174161471).

The spelling of 154130020 in words is "one hundred fifty-four million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 700591 1401182 2802364 3502955 7005910 7706501 14011820 15413002 30826004 38532505 77065010 154130020