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161482813480 = 2356196521923
BaseRepresentation
bin1001011001100100100…
…0000011000000101000
3120102211000101212200201
42112121020003000220
510121204100012410
6202103441041544
714444460160402
oct2263110030050
9512730355621
10161482813480
116253692494a
12273683262b4
13122c6522251
147b5c821b72
154301c3e83a
hex2599203028

161482813480 has 32 divisors (see below), whose sum is σ = 363923359200. Its totient is φ = 64488764736.

The previous prime is 161482813477. The next prime is 161482813489. The reversal of 161482813480 is 84318284161.

It is a self number, because there is not a number n which added to its sum of digits gives 161482813480.

It is not an unprimeable number, because it can be changed into a prime (161482813489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3236202 + ... + 3285721.

It is an arithmetic number, because the mean of its divisors is an integer number (11372604975).

Almost surely, 2161482813480 is an apocalyptic number.

161482813480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161482813480 is an abundant number, since it is smaller than the sum of its proper divisors (202440545720).

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

161482813480 is a wasteful number, since it uses less digits than its factorization.

161482813480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522553 (or 6522549 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 161482813480 in words is "one hundred sixty-one billion, four hundred eighty-two million, eight hundred thirteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 619 1238 2476 3095 4952 6190 12380 24760 6521923 13043846 26087692 32609615 52175384 65219230 130438460 260876920 4037070337 8074140674 16148281348 20185351685 32296562696 40370703370 80741406740 161482813480