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120812628 = 223431371709
BaseRepresentation
bin1110011001101…
…11010001010100
322102022220202210
413030313101110
5221412001003
615553233420
72664614256
oct714672124
9272286683
10120812628
1162217352
1234562870
131c04ca81
141208bcd6
15a916503
hex7337454

120812628 has 48 divisors (see below), whose sum is σ = 290727360. Its totient is φ = 39024384.

The previous prime is 120812623. The next prime is 120812633. The reversal of 120812628 is 826218021.

It is an interprime number because it is at equal distance from previous prime (120812623) and next prime (120812633).

It is a junction number, because it is equal to n+sod(n) for n = 120812595 and 120812604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120812623) 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, 69838 + ... + 71546.

It is an arithmetic number, because the mean of its divisors is an integer number (6056820).

Almost surely, 2120812628 is an apocalyptic number.

It is an amenable number.

120812628 is an abundant number, since it is smaller than the sum of its proper divisors (169914732).

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

120812628 is a wasteful number, since it uses less digits than its factorization.

120812628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 120812628 is about 10991.4797911837. The cubic root of 120812628 is about 494.3533071130.

The spelling of 120812628 in words is "one hundred twenty million, eight hundred twelve thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 137 172 258 274 411 516 548 822 1644 1709 3418 5127 5891 6836 10254 11782 17673 20508 23564 35346 70692 73487 146974 220461 234133 293948 440922 468266 702399 881844 936532 1404798 2809596 10067719 20135438 30203157 40270876 60406314 120812628