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1232105070 = 23578237129
BaseRepresentation
bin100100101110000…
…0110111001101110
310011212102102102010
41021130012321232
510010404330240
6322132142050
742350502030
oct11134067156
93155372363
101232105070
11582544859
122a4767926
13168355671
14b98c9c50
157327d280
hex49706e6e

1232105070 has 64 divisors (see below), whose sum is σ = 3384069120. Its totient is φ = 281242368.

The previous prime is 1232105057. The next prime is 1232105087. The reversal of 1232105070 is 705012321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169266 + ... + 176394.

It is an arithmetic number, because the mean of its divisors is an integer number (52876080).

Almost surely, 21232105070 is an apocalyptic number.

1232105070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232105070 is an abundant number, since it is smaller than the sum of its proper divisors (2151964050).

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

1232105070 is a wasteful number, since it uses less digits than its factorization.

1232105070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7969.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1232105070 is about 35101.3542473791. The cubic root of 1232105070 is about 1072.0521567916.

Adding to 1232105070 its reverse (705012321), we get a palindrome (1937117391).

The spelling of 1232105070 in words is "one billion, two hundred thirty-two million, one hundred five thousand, seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 823 1646 2469 4115 4938 5761 7129 8230 11522 12345 14258 17283 21387 24690 28805 34566 35645 42774 49903 57610 71290 86415 99806 106935 149709 172830 213870 249515 299418 499030 748545 1497090 5867167 11734334 17601501 29335835 35203002 41070169 58671670 82140338 88007505 123210507 176015010 205350845 246421014 410701690 616052535 1232105070