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331730054 = 2281590267
BaseRepresentation
bin10011110001011…
…100110010000110
3212010012122002022
4103301130302012
51134410330204
652530043142
711135442005
oct2361346206
9763178068
10331730054
11160286777
12931194b2
135395a396
14320b2c3c
151e1ca5be
hex13c5cc86

331730054 has 8 divisors (see below), whose sum is σ = 499366728. Its totient is φ = 165274480.

The previous prime is 331730051. The next prime is 331730083. The reversal of 331730054 is 450037133.

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

It is a super-2 number, since 2×3317300542 = 220089657453685832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331730051) 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, 294572 + ... + 295695.

It is an arithmetic number, because the mean of its divisors is an integer number (62420841).

Almost surely, 2331730054 is an apocalyptic number.

331730054 is a deficient number, since it is larger than the sum of its proper divisors (167636674).

331730054 is a wasteful number, since it uses less digits than its factorization.

331730054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590550.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 331730054 is about 18213.4580461811. The cubic root of 331730054 is about 692.2478354827.

Adding to 331730054 its reverse (450037133), we get a palindrome (781767187).

The spelling of 331730054 in words is "three hundred thirty-one million, seven hundred thirty thousand, fifty-four".

Divisors: 1 2 281 562 590267 1180534 165865027 331730054