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105648740 = 22519299587
BaseRepresentation
bin1100100110000…
…01001001100100
321100210111211022
412103001021210
5204021224430
614252230312
72421666551
oct623011144
9240714738
10105648740
11546aa50a
122b46b398
1318b70962
1410061a28
15941d4e5
hex64c1264

105648740 has 48 divisors (see below), whose sum is σ = 241617600. Its totient is φ = 38650752.

The previous prime is 105648737. The next prime is 105648793. The reversal of 105648740 is 47846501.

It is a super-2 number, since 2×1056487402 = 22323312527175200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105648740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6227 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (5033700).

Almost surely, 2105648740 is an apocalyptic number.

105648740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105648740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120808800).

105648740 is an abundant number, since it is smaller than the sum of its proper divisors (135968860).

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

105648740 is a wasteful number, since it uses less digits than its factorization.

105648740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644 (or 9642 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 105648740 is about 10278.5572917604. The cubic root of 105648740 is about 472.7390091895.

The spelling of 105648740 in words is "one hundred five million, six hundred forty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 29 38 58 76 95 116 145 190 290 380 551 580 1102 2204 2755 5510 9587 11020 19174 38348 47935 95870 182153 191740 278023 364306 556046 728612 910765 1112092 1390115 1821530 2780230 3643060 5282437 5560460 10564874 21129748 26412185 52824370 105648740