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201012237458 = 279240132
BaseRepresentation
bin1011101100110101000…
…0110101010010010010
3201012211212222200020122
42323031100311102102
511243133113044313
6232202125510242
720344161553424
oct2731520652222
9635755880218
10201012237458
117828119318a
1232b5a712382
1315c55c52456
149a2c6d6814
155367271708
hex2ecd435492

201012237458 has 18 divisors (see below), whose sum is σ = 305459474229. Its totient is φ = 99209161272.

The previous prime is 201012237451. The next prime is 201012237467. The reversal of 201012237458 is 854732210102.

It can be written as a sum of positive squares in 2 ways, for example, as 174450734929 + 26561502529 = 417673^2 + 162977^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=317027.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201012237451) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50088260 + ... + 50092272.

Almost surely, 2201012237458 is an apocalyptic number.

201012237458 is a deficient number, since it is larger than the sum of its proper divisors (104447236771).

201012237458 is an frugal number, since it uses more digits than its factorization.

201012237458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186 (or 4094 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 201012237458 in words is "two hundred one billion, twelve million, two hundred thirty-seven thousand, four hundred fifty-eight".

Divisors: 1 2 79 158 4013 6241 8026 12482 317027 634054 16104169 25045133 32208338 50090266 1272229351 2544458702 100506118729 201012237458