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70769475 = 325274131
BaseRepresentation
bin1000011011111…
…01101101000011
311221011110110200
410031331231003
5121104110400
611004500243
71516350000
oct415755503
9157143420
1070769475
1136a47177
121b84a683
131187ab3a
1495828a7
15632db00
hex437db43

70769475 has 90 divisors (see below), whose sum is σ = 149001996. Its totient is φ = 32104800.

The previous prime is 70769467. The next prime is 70769513. The reversal of 70769475 is 57496707.

It is not a de Polignac number, because 70769475 - 23 = 70769467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 70769475.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 540160 + ... + 540290.

Almost surely, 270769475 is an apocalyptic number.

70769475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70769475 is an abundant number, since it is smaller than the sum of its proper divisors (78232521).

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

70769475 is a wasteful number, since it uses less digits than its factorization.

70769475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 70769475 is about 8412.4595095608. The cubic root of 70769475 is about 413.6331378626.

The spelling of 70769475 in words is "seventy million, seven hundred sixty-nine thousand, four hundred seventy-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 49 63 75 105 131 147 175 225 245 315 343 393 441 525 655 735 917 1029 1179 1225 1575 1715 1965 2205 2401 2751 3087 3275 3675 4585 5145 5895 6419 7203 8253 8575 9825 11025 12005 13755 15435 19257 21609 22925 25725 29475 32095 36015 41265 44933 57771 60025 68775 77175 96285 108045 134799 160475 180075 206325 224665 288855 314531 404397 481425 540225 673995 943593 1123325 1444275 1572655 2021985 2830779 3369975 4717965 7863275 10109925 14153895 23589825 70769475