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11997030 = 2352317387
BaseRepresentation
bin101101110000…
…111101100110
3211120111211110
4231300331212
511032401110
61105045450
7203654523
oct55607546
924514743
1011997030
116854601
124026886
132640846
14184414a
1510bea20
hexb70f66

11997030 has 32 divisors (see below), whose sum is σ = 30046464. Its totient is φ = 3059936.

The previous prime is 11996993. The next prime is 11997049. The reversal of 11997030 is 3079911.

11997030 = T464 + T465 + ... + T555.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 8004 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (938952).

Almost surely, 211997030 is an apocalyptic number.

11997030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11997030 is an abundant number, since it is smaller than the sum of its proper divisors (18049434).

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

11997030 is a wasteful number, since it uses less digits than its factorization.

11997030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17420.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 11997030 is about 3463.6729060349. The cubic root of 11997030 is about 228.9239591672.

The spelling of 11997030 in words is "eleven million, nine hundred ninety-seven thousand, thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 17387 34774 52161 86935 104322 173870 260805 399901 521610 799802 1199703 1999505 2399406 3999010 5998515 11997030