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69485487201 = 361327512
BaseRepresentation
bin100000010110110101…
…0000110010001100001
320122100120012111000000
41000231222012101201
52114301241042301
651530551050213
75006625616224
oct1005552062141
9218316174000
1069485487201
1127517822a89
1211572670969
136724980900
1435125635bb
151c1a37c786
hex102da86461

69485487201 has 63 divisors (see below), whose sum is σ = 112961330307. Its totient is φ = 42703362000.

The previous prime is 69485487107. The next prime is 69485487223. The reversal of 69485487201 is 10278458496.

It is a happy number.

The square root of 69485487201 is 263601.

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

69485487201 is a `hidden beast` number, since 6 + 94 + 8 + 548 + 7 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10278918225 + 59206568976 = 101385^2 + 243324^2 .

It is not a de Polignac number, because 69485487201 - 27 = 69485487073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69485486201) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 92523576 + ... + 92524326.

It is an arithmetic number, because the mean of its divisors is an integer number (1793036989).

Almost surely, 269485487201 is an apocalyptic number.

69485487201 is the 263601-st square number.

69485487201 is the 131801-st centered octagonal number.

It is an amenable number.

69485487201 is a deficient number, since it is larger than the sum of its proper divisors (43475843106).

69485487201 is an frugal number, since it uses more digits than its factorization.

69485487201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 69485487201 in words is "sixty-nine billion, four hundred eighty-five million, four hundred eighty-seven thousand, two hundred one".

Divisors: 1 3 9 13 27 39 81 117 169 243 351 507 729 751 1053 1521 2253 3159 4563 6759 9477 9763 13689 20277 29289 41067 60831 87867 123201 126919 182493 263601 380757 547479 564001 790803 1142271 1692003 2372409 3426813 5076009 7117227 7332013 10280439 15228027 21996039 30841317 45684081 65988117 92523951 95316169 137052243 197964351 285948507 411156729 593893053 857845521 1781679159 2573536563 5345037477 7720609689 23161829067 69485487201