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169107121 = 1633532939
BaseRepresentation
bin10100001010001…
…01111010110001
3102210012112100201
422011011322301
5321242411441
624440315201
74122246451
oct1205057261
9383175321
10169107121
1187502757
1248772b01
132905bab1
141865dd61
15eca5c31
hexa145eb1

169107121 has 8 divisors (see below), whose sum is σ = 170684640. Its totient is φ = 167536512.

The previous prime is 169107101. The next prime is 169107167. The reversal of 169107121 is 121701961.

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 169107121 - 213 = 169098929 is a prime.

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 169107121.

It is not an unprimeable number, because it can be changed into a prime (169107101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56070 + ... + 59008.

It is an arithmetic number, because the mean of its divisors is an integer number (21335580).

Almost surely, 2169107121 is an apocalyptic number.

It is an amenable number.

169107121 is a deficient number, since it is larger than the sum of its proper divisors (1577519).

169107121 is a wasteful number, since it uses less digits than its factorization.

169107121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its (nonzero) digits is 756, while the sum is 28.

The square root of 169107121 is about 13004.1193857946. The cubic root of 169107121 is about 552.9942708745.

The spelling of 169107121 in words is "one hundred sixty-nine million, one hundred seven thousand, one hundred twenty-one".

Divisors: 1 163 353 2939 57539 479057 1037467 169107121