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145384406 = 2531371551
BaseRepresentation
bin10001010101001…
…10001111010110
3101010120021220122
420222212033112
5244204300111
622232031542
73413514146
oct1052461726
9333507818
10145384406
117507a502
12408325b2
132417409b
1415446926
15cb6bcdb
hex8aa63d6

145384406 has 8 divisors (see below), whose sum is σ = 222191424. Its totient is φ = 71320600.

The previous prime is 145384399. The next prime is 145384423. The reversal of 145384406 is 604483541.

145384406 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1453844062 = 42273251015945672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685670 + ... + 685881.

It is an arithmetic number, because the mean of its divisors is an integer number (27773928).

Almost surely, 2145384406 is an apocalyptic number.

145384406 is a deficient number, since it is larger than the sum of its proper divisors (76807018).

145384406 is a wasteful number, since it uses less digits than its factorization.

145384406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371606.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 145384406 is about 12057.5456043094. The cubic root of 145384406 is about 525.8226329270.

The spelling of 145384406 in words is "one hundred forty-five million, three hundred eighty-four thousand, four hundred six".

Divisors: 1 2 53 106 1371551 2743102 72692203 145384406