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102770227 = 7101145361
BaseRepresentation
bin1100010000000…
…10011000110011
321011101021020201
412020002120303
5202302121402
614110420031
72355350440
oct610023063
9234337221
10102770227
115301387a
122a501617
13183a36b1
14d9129c7
159050687
hex6202633

102770227 has 8 divisors (see below), whose sum is σ = 118615392. Its totient is φ = 87216000.

The previous prime is 102770197. The next prime is 102770237. The reversal of 102770227 is 722077201.

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

It is a cyclic number.

It is not a de Polignac number, because 102770227 - 223 = 94381619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102770195 and 102770204.

It is not an unprimeable number, because it can be changed into a prime (102770237) 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, 71974 + ... + 73387.

It is an arithmetic number, because the mean of its divisors is an integer number (14826924).

Almost surely, 2102770227 is an apocalyptic number.

102770227 is a deficient number, since it is larger than the sum of its proper divisors (15845165).

102770227 is a wasteful number, since it uses less digits than its factorization.

102770227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145469.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 102770227 is about 10137.5651415910. The cubic root of 102770227 is about 468.4059882581.

The spelling of 102770227 in words is "one hundred two million, seven hundred seventy thousand, two hundred twenty-seven".

Divisors: 1 7 101 707 145361 1017527 14681461 102770227