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897513082974 = 232472394438871
BaseRepresentation
bin11010000111101111111…
…00101101000001011110
310011210122020012121102100
431003313330231001132
5104201101322123344
61524151204105530
7121562132221404
oct15036774550136
93153566177370
10897513082974
113166a6812272
12125b3b3952a6
136683448a881
1431622dbd474
151852e037569
hexd0f7f2d05e

897513082974 has 48 divisors (see below), whose sum is σ = 1994296412160. Its totient is φ = 291580492560.

The previous prime is 897513082937. The next prime is 897513083017. The reversal of 897513082974 is 479280315798.

897513082974 is a `hidden beast` number, since 8 + 97 + 513 + 0 + 8 + 29 + 7 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017242 + ... + 2421629.

It is an arithmetic number, because the mean of its divisors is an integer number (41547841920).

Almost surely, 2897513082974 is an apocalyptic number.

897513082974 is an abundant number, since it is smaller than the sum of its proper divisors (1096783329186).

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

897513082974 is a wasteful number, since it uses less digits than its factorization.

897513082974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439165 (or 4439162 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 897513082974 in words is "eight hundred ninety-seven billion, five hundred thirteen million, eighty-two thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 47 94 141 239 282 423 478 717 846 1434 2151 4302 11233 22466 33699 67398 101097 202194 4438871 8877742 13316613 26633226 39949839 79899678 208626937 417253874 625880811 1060890169 1251761622 1877642433 2121780338 3182670507 3755284866 6365341014 9548011521 19096023042 49861837943 99723675886 149585513829 299171027658 448756541487 897513082974