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15420001206 = 232570000201
BaseRepresentation
bin11100101110001101…
…01000101110110110
31110210122110020000210
432113012220232312
5223040010014311
611030040050250
71054056563511
oct162706505666
943718406023
1015420001206
1165a3209155
122ba4163986
1315b987148c
14a63d13d78
15603b293a6
hex3971a8bb6

15420001206 has 8 divisors (see below), whose sum is σ = 30840002424. Its totient is φ = 5140000400.

The previous prime is 15420001199. The next prime is 15420001217. The reversal of 15420001206 is 60210002451.

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

15420001206 is an admirable number.

It is a super-3 number, since 3×154200012063 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285000095 + ... + 1285000106.

It is an arithmetic number, because the mean of its divisors is an integer number (3855000303).

Almost surely, 215420001206 is an apocalyptic number.

15420001206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15420001206 is a wasteful number, since it uses less digits than its factorization.

15420001206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570000206.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 15420001206 its reverse (60210002451), we get a palindrome (75630003657).

The spelling of 15420001206 in words is "fifteen billion, four hundred twenty million, one thousand, two hundred six".

Divisors: 1 2 3 6 2570000201 5140000402 7710000603 15420001206