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7054152121 = 47217872
BaseRepresentation
bin1101001000111010…
…11101000110111001
3200012121122001112101
412210131131012321
5103421330331441
63123550543401
7336544206112
oct64435350671
920177561471
107054152121
112a9a980995
12144a507b61
138855b6213
144acc15209
152b4464231
hex1a475d1b9

7054152121 has 9 divisors (see below), whose sum is σ = 7211469349. Its totient is φ = 6900200284.

The previous prime is 7054152101. The next prime is 7054152167. The reversal of 7054152121 is 1212514507.

The square root of 7054152121 is 83989.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7054152121 - 29 = 7054151609 is a prime.

It is a super-2 number, since 2×70541521212 = 99522124292417597282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7054152121.

It is not an unprimeable number, because it can be changed into a prime (7054152101) 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, 3946590 + ... + 3948376.

Almost surely, 27054152121 is an apocalyptic number.

7054152121 is the 83989-th square number.

7054152121 is the 41995-th centered octagonal number.

It is an amenable number.

7054152121 is a deficient number, since it is larger than the sum of its proper divisors (157317228).

7054152121 is an frugal number, since it uses more digits than its factorization.

7054152121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The cubic root of 7054152121 is about 1917.8513399248.

Adding to 7054152121 its reverse (1212514507), we get a palindrome (8266666628).

The spelling of 7054152121 in words is "seven billion, fifty-four million, one hundred fifty-two thousand, one hundred twenty-one".

Divisors: 1 47 1787 2209 83989 3193369 3947483 150088343 7054152121