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401830831147 = 1999721212629
BaseRepresentation
bin1011101100011101111…
…10111110010000101011
31102102012021121020011211
411312032332332100223
523040422143044042
6504333141133551
741013512465104
oct5661676762053
91372167536154
10401830831147
11145463034999
1265a643ba2b7
132bb7aa34795
141563d3c33ab
15a6bc4e2017
hex5d8efbe42b

401830831147 has 8 divisors (see below), whose sum is σ = 423404094800. Its totient is φ = 380299994784.

The previous prime is 401830831133. The next prime is 401830831219. The reversal of 401830831147 is 741138038104.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-401830831147 is a prime.

It is a super-2 number, since 2×4018308311472 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401830831117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10587372 + ... + 10625257.

It is an arithmetic number, because the mean of its divisors is an integer number (52925511850).

Almost surely, 2401830831147 is an apocalyptic number.

401830831147 is a deficient number, since it is larger than the sum of its proper divisors (21573263653).

401830831147 is a wasteful number, since it uses less digits than its factorization.

401830831147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21213645.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 401830831147 in words is "four hundred one billion, eight hundred thirty million, eight hundred thirty-one thousand, one hundred forty-seven".

Divisors: 1 19 997 18943 21212629 403039951 21148991113 401830831147