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146740820 = 2257337041
BaseRepresentation
bin10001011111100…
…01011001010100
3101020010012120012
420233301121110
5300031201240
622321055352
73431163542
oct1057613124
9336105505
10146740820
1175916606
1241187558
132452a5b5
14156bad92
15cd38b65
hex8bf1654

146740820 has 12 divisors (see below), whose sum is σ = 308155764. Its totient is φ = 58696320.

The previous prime is 146740817. The next prime is 146740823. The reversal of 146740820 is 28047641.

146740820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (146740817) and next prime (146740823).

It can be written as a sum of positive squares in 2 ways, for example, as 98327056 + 48413764 = 9916^2 + 6958^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146740823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668501 + ... + 3668540.

It is an arithmetic number, because the mean of its divisors is an integer number (25679647).

Almost surely, 2146740820 is an apocalyptic number.

146740820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146740820 is an abundant number, since it is smaller than the sum of its proper divisors (161414944).

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

146740820 is a wasteful number, since it uses less digits than its factorization.

146740820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337050 (or 7337048 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 146740820 is about 12113.6625345104. The cubic root of 146740820 is about 527.4528547370.

The spelling of 146740820 in words is "one hundred forty-six million, seven hundred forty thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 7337041 14674082 29348164 36685205 73370410 146740820