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146253740 = 22517940853
BaseRepresentation
bin10001011011110…
…10011110101100
3101012012110102012
420231322132230
5244420104430
622302420352
73424064513
oct1055723654
9335173365
10146253740
1175613666
1240b916b8
13243b9999
14155d167a
15cc8e695
hex8b7a7ac

146253740 has 24 divisors (see below), whose sum is σ = 308856240. Its totient is φ = 58173248.

The previous prime is 146253721. The next prime is 146253763. The reversal of 146253740 is 47352641.

It is a junction number, because it is equal to n+sod(n) for n = 146253697 and 146253706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16847 + ... + 24006.

It is an arithmetic number, because the mean of its divisors is an integer number (12869010).

Almost surely, 2146253740 is an apocalyptic number.

146253740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146253740 is an abundant number, since it is smaller than the sum of its proper divisors (162602500).

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

146253740 is a wasteful number, since it uses less digits than its factorization.

146253740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41041 (or 41039 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 146253740 is about 12093.5412514284. The cubic root of 146253740 is about 526.8686125804.

The spelling of 146253740 in words is "one hundred forty-six million, two hundred fifty-three thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 40853 81706 163412 204265 408530 817060 7312687 14625374 29250748 36563435 73126870 146253740